Preschool Pushings

I picked Colin up from his first day of preschool today.  As we're driving away, I asked him how his morning was and if he liked preschool.  His response?

"The guy teacher said 'Oh!!' really loud when I pushed on his butt."

This was immediately followed with a long conversation as to why we are not allowed to touch people's butts!  Oh the things he says ....