drops of what?

He marched around the house this morning yelling "Cover everything carefully! I don't want to see a drop of paint anywhere but on the wall!". Since we are not, in fact, painting anything, I asked him what he was talking about. He said "I heard it on my Rescue Heroes movie--they were painting the station." Oh. Laughing, I headed to the bathroom (the paint lecture having woken me up). I wasn't in there long before he burst into the room, dancing wildly and saying "hurry up, hurry up! I don't want to get a drop of pee anywhere but in the toilet!". I hurried, of course. I was somewhat hindered by how hard I was laughing at the joke he made!