diff --git a/src/commands/inspect.rs b/src/commands/inspect.rs
index 6414a441..6d733eb3 100644
--- a/src/commands/inspect.rs
+++ b/src/commands/inspect.rs
@@ -44,6 +44,7 @@ use crate::cli::types::FileOrStdout;
 use crate::commands::packet::dump::PacketDumper;
 use crate::common::NULL_POLICY;
 use crate::common::PreferredUserID;
+use crate::common::ui;
 
 /// Width of the largest key of any key, value pair we emit.
 const WIDTH: usize = 17;
@@ -570,7 +571,7 @@ fn print_reasons(output: &mut dyn io::Write,
         }
         if let Some(msg) = message {
             writeln!(output, "{:>WIDTH$}     Message: {}", "",
-                     String::from_utf8_lossy(msg))?;
+                     ui::Safe(msg))?;
         }
     }
     Ok(())
diff --git a/src/commands/key/list.rs b/src/commands/key/list.rs
index d0c82dc7..61b6f208 100644
--- a/src/commands/key/list.rs
+++ b/src/commands/key/list.rs
@@ -26,6 +26,7 @@ use crate::Time;
 use crate::cli::types::cert_designator;
 use crate::cli;
 use crate::common::NULL_POLICY;
+use crate::common::ui;
 
 /// Keys may either be grouped into a certificate or be bare.
 ///
@@ -157,8 +158,7 @@ fn key_validity(sq: &Sq, cert: &Cert, key: Option<&Fingerprint>) -> Vec<String>
                 reason_ = reason.to_string();
                 if ! message.is_empty() {
                     reason_.push_str(": ");
-                    reason_.push_str(&format!(
-                        "{:?}", String::from_utf8_lossy(message)));
+                    reason_.push_str(&ui::Safe(message).to_string());
                 }
                 &reason_
             } else {
diff --git a/src/commands/network.rs b/src/commands/network.rs
index 7da84db9..b7609c95 100644
--- a/src/commands/network.rs
+++ b/src/commands/network.rs
@@ -56,6 +56,7 @@ use crate::{
         FileOrStdout,
         active_certification,
     },
+    common::ui,
     output::{
         import::ImportStats,
         pluralize::Pluralize,
@@ -834,7 +835,7 @@ impl Response {
                             {
                                 qprintln!(initial_indent = "   - ",
                                           "revoked: {}, {}", reason,
-                                          String::from_utf8_lossy(message));
+                                          ui::Safe(message));
                             } else {
                                 qprintln!(initial_indent = "   - ",
                                           "revoked");
@@ -847,7 +848,7 @@ impl Response {
                             {
                                 qprintln!(initial_indent = "   - ",
                                           "possibly revoked: {}, {}", reason,
-                                          String::from_utf8_lossy(message));
+                                          ui::Safe(message));
                             } else {
                                 qprintln!(initial_indent = "   - ",
                                           "possibly revoked");
diff --git a/src/commands/packet/dump.rs b/src/commands/packet/dump.rs
index 0f455188..b3fc0a86 100644
--- a/src/commands/packet/dump.rs
+++ b/src/commands/packet/dump.rs
@@ -22,6 +22,7 @@ use self::openpgp::parse::{
 
 use crate::Convert;
 use crate::cli::types::SessionKey;
+use crate::common::ui;
 use crate::Sq;
 
 #[derive(Debug)]
@@ -909,9 +910,9 @@ impl<'a, 'b, 'c> PacketDumper<'a, 'b, 'c> {
                 write!(output, "{}    Signer's User ID: {}", i,
                        String::from_utf8_lossy(u))?,
             ReasonForRevocation{code, ref reason} => {
-                let reason = String::from_utf8_lossy(reason);
                 write!(output, "{}    Reason for revocation: {}{}{}", i, code,
-                       if reason.len() > 0 { ", " } else { "" }, reason)?
+                       if reason.len() > 0 { ", " } else { "" },
+                       ui::Safe(reason))?
             }
             Features(ref f) =>
                 write!(output, "{}    Features: {:?}", i, f)?,
diff --git a/src/common/pki/authenticate.rs b/src/common/pki/authenticate.rs
index e7eb0eae..dbf13c23 100644
--- a/src/common/pki/authenticate.rs
+++ b/src/common/pki/authenticate.rs
@@ -16,7 +16,10 @@ use cli::types::userid_designator;
 use super::output::ConciseHumanReadableOutputNetwork;
 use super::output::OutputType;
 
-use crate::Sq;
+use crate::{
+    Sq,
+    common::ui,
+};
 
 const TRACE: bool = false;
 
@@ -364,12 +367,7 @@ pub fn authenticate<'store, 'rstore>(
                     weprintln!("Warning: {} is revoked: {}{}",
                                cert.fingerprint(),
                                reason,
-                               if message.is_empty() {
-                                   "".to_string()
-                               } else {
-                                   format!(": {:?}",
-                                           String::from_utf8_lossy(message))
-                               });
+                               ui::Safe(message));
                 } else {
                     weprintln!("Warning: {} is revoked: unspecified reason",
                                cert.fingerprint());
diff --git a/src/common/pki/output/concise_human_readable.rs b/src/common/pki/output/concise_human_readable.rs
index 0e9629a6..c6a9e3f1 100644
--- a/src/common/pki/output/concise_human_readable.rs
+++ b/src/common/pki/output/concise_human_readable.rs
@@ -27,6 +27,7 @@ use crate::Convert;
 use crate::Sq;
 use crate::Time;
 use crate::common::ca_creation_time;
+use crate::common::ui;
 use crate::error_chain;
 use crate::output::wrapping::NBSP;
 use super::OutputType;
@@ -305,8 +306,7 @@ impl OutputType for ConciseHumanReadableOutputNetwork<'_, '_, '_> {
                     reason_ = reason.to_string();
                     if ! message.is_empty() {
                         reason_.push_str(": ");
-                        reason_.push_str(&format!(
-                            "{:?}", String::from_utf8_lossy(message)));
+                        reason_.push_str(&ui::Safe(message).to_string());
                     }
                     &reason_
                 } else {