Folks that blurt out just what they think wouldn't be so bad if they thought. - Kin Hubbard
Instantly I regretted my decision. It was one of those times when you hear yourself saying something, and it seems like a good idea at the time, but once you blurt it out you can hardly believe it's you speaking. What was I thinking? - lisa shuler
It often happens that we blurt out things that may in some kind of way be harmful to us, but we are silent about things that may make us look ridiculous; because in this case effect follows very quickly on cause. - Arthur Schopenhauer