diff --git a/docs/usage/mount.rst.inc b/docs/usage/mount.rst.inc
index ee63cb42b..e15f25afa 100644
--- a/docs/usage/mount.rst.inc
+++ b/docs/usage/mount.rst.inc
@@ -61,3 +61,10 @@ The BORG_MOUNT_DATA_CACHE_ENTRIES environment variable is meant for advanced use
 to tweak the performance. It sets the number of cached data chunks; additional
 memory usage can be up to ~8 MiB times this number. The default is the number
 of CPU cores.
+
+When the daemonized process receives a signal or crashes, it does not unmount.
+Unmounting in these cases could cause an active rsync or similar process
+to unintentionally delete data.
+
+When running in the foreground ^C/SIGINT unmounts cleanly, but other
+signals or crashes do not.