While Daddy and Calvin are in the bathroom getting ready for bed:
Calvin: Where's my medicine?
Daddy: Huh? You don't take any medicine, Calvin. You are a very healthy boy.
Calvin: Oh! Well, sometimes I do.
Daddy: I suppose you are right. Do you take medicine when you don't feel well?
Calvin: (Very seriously nods head) Yeeessss.
It reminds me a bit of stories I have heard of Calvin's uncle Russ when he was a very young boy. Here is one scene that took place at a Chinese Restaurant when Russ was around Calvin's age:
Waitress brings little Russel a tea cup with out a handle.
Russ: I don't want a cup without a handle.
Kind waitress substitutes the cup for a tea cup with a handle.
Russ: (Pauses to contemplate the difference between the tea cups) Some do, some don't!
I don't know if everyone gets as big of a kick out of listening to two year olds philosophize... I could listen in on little conversations like these all day long. (And well, I do! Love my occupation. :)