He's relating you to the 100 year old man, saying that no one better make you angry, or you might beat us up.a joke basically.
EDIT: Ah, I see, hmmm, a joke is it, be careful jenox, be very careful, have you ever had a crack on the shins with a walking stick?, or worse, been sneezed on by an old guy, not nice!
Brookfield, the Silver Avenger....is it a bird?. is it a plane?