HELL YES! That's my 3 year old son's answer to everything I ask him now.  "Matthew, do you want lunch?"  "HELL YES!"    "Matthew, did you poop in your pants?"  "HELL YES!"    Hell yes, I know this is all my fault.   Hell yes, I think it's funny.  As a parent though, I have to stifle my giggles and tell him it's not appropriate, or do I?  Funny thing about kids...even at age 3, he knows it's not o.k. to say at pre-school.  He LOVES the shock value.  His sisters crack up, even grandma and grandpa think it's funny.  I am trying not to make a big deal of it so that it plays out.  I'll start worrying when he drops the "f" bomb.