Why on Earth do we close our eyes when we sneeze?
Probably because we don't want to see who our saliva hits.

Why on Earth do our parents boss us around?
Probably because they don't want us to boss them around and get embarrased.

Why do we have homework?
The teachers don't want to get in trouble for not giving you any.

Why did I write this joke?
Because I'm totally bored and I just sneezed when my mother told me to do
my homework.