Miscellaneous Family Anecdotes

My brother and I are saying hello to my father's friend, who simply cannot remember our names.
Dad's friend: Hey boy. Hey girl.
Brother: (starts making bass & beat noises) Superstar DJ! Here we go!

My brother and I are looking at various company names and come across one which includes the initials "CSI".
Brother: Don't do it.
Me: Do what?
Brother: Just don't!
Me: (innocently) What? (short pause before singing) "Who are you? Who-who-who-who?"
Brother: I knew it! I knew you'd do that!

Dad: What? Of course I'm a kind and gentle person.
Me: Yes. Dad's as gentle as a little lamb... (in a whisper to my brother) with rabies.