Subject: bug#11268: Rgrep can get out of hand, so...

From: [email-masked]
Date: Thu, 19 Apr 2012 16:08:17 +0800

Never ever use two of the same key, e.g., C-c C-c, without
confirmation.

It's not going to cooperate if it is busy anyway, so
I always end up starting a new shell to do killall emacs.