diff --git a/README.md b/README.md
index b5be646..aa255c8 100644
--- a/README.md
+++ b/README.md
@@ -18,7 +18,7 @@ manage-tools uninstall gdb
 manage-tools uninstall all
 ```
 
-Where possible, the tools keep the installs very self-contained (i.e., in to tool/ directory), and most uninstalls are just calls to `git clean`.
+Where possible, the tools keep the installs very self-contained (i.e., in to tool/ directory), and most uninstalls are just calls to `git clean` (**NOTE**, this is **NOT** careful; everything under the tool directory, including whatever you were working on, is blown away during an uninstall).
 To support python dependencies, however, make sure to create a virtualenv before installing and using tools (i.e., `mkvirtualenv ctf`).
 Installers for the following tools are included: