Staci, I know that feeling!! Pretending you don't know them...haha.
My oldest son got a little "payback" for that, recently (he's 19, now) while he was watching the youngest play at the playground. The 4-year-old ran off to a tree and whipped down the pants and went to watering that tree. His tip-off was a little girl yelling "don't look behind the tree!"
Well, Kenny was pretty horrified, but I had to think back to the times he did that to ME.
I think the commercial almost nailed it (remembering the trepidation with which I would open their diaper and hoping they wouldn't squirt me one for it!)!!
liz