Couse they got nothing better to do.
Couse the teacher said so. (idiot -.- )
Couse it`s in our nature to be curious.
Couse it`s peanut butter jelly time!!!
couse if someone says so ,there always has to be someone that`s gonna say the oposite just for fun.
Because not everything has to be logical... The world isn`t black and white.