M: "Does Daddy have potties at work?"
mom: "Yes he does."
M: "Are you sure?"
mom: "Yes sweetheart he does."
M: "Then why does he always have to go to the bathroom when he comes home?"
mom: "Good question. Why don't you ask Dad?" (I think it is because he knows he can lock the door and read all of his medical journals that are piling up without anyone 'bugging' him)