The air stewardess

This happened while we were eating Wee Nam Kee chicken rice...

Bimbo: How come your dad knows about planes?
Me: Because he used to be a pilot.
Bimbo: Oh, so your mum is an air stewardess lah!
Me: No, my dad was a pilot in the Air Force.
Bimbo: But Air Force also have air stewardess mah!
Me: Err... to give pilots parachutes ah?