Marcus Says the Darndest Things

Marcus talks in his sleep a lot. Sometimes, if I'm awake, I like to converse with him. There is no telling what he'll say. This was our conversation from 3:00 am last night:

Marcus (Sitting up suddenly in bed): "What's that?!?!"
Me: "It's ok, you're asleep."
Marcus: "What are you?"
Me: "I'm your wife."
Marcus: "Hmmmmm."
Me: "What are you?"
Marcus: "I'm curious."
Me: "Why?"
Marcus: "Because you appear to have a shell."
Me (Laughing hysterically): "This is so going on facebook."