YOU'RE MOM.
SIDS
You don't cry in your beer when the Irish song is playing.
Your mom can't take a joke.
Biggie loves it when you call him Big Poppa, while your mom just loves it when you call.
If you don't like it, you just shake it and start over.
They both get ditched in the park
3, duh. (My ex's 9 year old little sister told me this joke, and followed is up with: "and YOU'RE the math guy!" >< Burned.)