Here are some of the latest quotes from around our house (M- is my 22-month-old daughter and D- is my 4-year-old son):
M- (pointedly, almost any time we ask her if she can do something): No, I'm too busy right now.*
D- (after being reminded about how M- will be 4 some day): And then we can have a FIGHT!!
M- (whenever she sees D- or I getting dressed): Bye, penis!
Me (with predictable disbelief and disgust): M-, do not eat food off the toilet seat.
M- (to my mom, uncharacteristically not doing whatever M- wanted her to at the moment): No! You make me saaad!!
* As I had to swear to my sister, neither J- nor I have ever in our lives said this to either of our kids, though of course many times we've thought it.