Mgirardo, I am no plumber either and I apologize in advance as your post did give me a little chuckle. The reason being I have done the exact same thing many times over my life. The only exception is that I would have then went to the Kitchen sink where there is the possibility of there being two more P-traps and repeated the same inspection process. By this time my wife would have caught on to what I was doing and stopped me any further damage.
Seriously, I do know that the fittings on some p-traps can be overtightened, there is no pressure to speak of and the gaskets are of soft rubber or foam and they can distorted easily if over tightened, hand tight only is usually enough.