Does anyone else ever get the random feeling that if you open your mouth just one more time, that you'll regret what you have to say forever?

I suddenly felt that way.

Mind you...I'm not talking to anyone and I don't know what it is I would say. Just suddenly I feel it not wise of me to speak.

Maybe I heard myself singing too loudly earlier...I don't know...just thought I'd share my random feeling.

EDIT:

The mood has passed. It was still really odd though. Anyone else ever get that random feeling though?