VIDEO : Will Arnett And Stephen Colbert Relive Childhood Together

Will Arnett and Stephen Colbert have a ball together while on ?The Late show? this Monday night. The men both huddled under a makeshift blanket fort and discussed their childhood. Together they learned that ?garbage men live at the dump,? ?all teachers live in the school,? and that ?dogs and cats can get married.? Arnett also asked Colbert, ?Why do adults drink alcohol if it tastes so bad?? Colbert turned to him and stated, ?They need to drink it. Otherwise, they don?t know how to laugh. Or sleep. Or do sex.?