Poking is an exceptionally wonderful passtime. Think about it. Is there anything so simple yet so clearly rude, obnoxious, offensive and wrong?
Don't like your food? Poke at it.
Not sure what that stuff in the corner is, between the bathtub and the toilet? Poke at it.
Wanna stop billy from pickin' his nose? Poke him.
And the most aggressive.. need to get the point across to some dudeguy in sandles who the boss is around here? give him a good multi-finger poke right in the chestable area. He'll get the picture.
or you'll be eating through a straw. either way, poking got it done!