Because they can't move fast enough to flick a booger
Those little guys don't hurt anybody. They just chill all day.
AU GUYS!!!
Don't wipe boogers on Mommy's pillow! Wipe it on Daddy's
Because he refused to rent someone a copy of the Pixar flick "Up".
No IT guys change light bulbs, they just keep flicking the switch on and off again until something happens.