Can they sting? We have a plethora of bumblebees yet I've never known anyone to have been stung by one... IF they can sting? I'm too lazy to google it.

Wasp's are the worst, sting-wise that is. Those son-of-gun's hurt.

On my ranch we have many Tarantula Hawks... big black wasps that kill tarantulas... ever see one?... or more to point - "hear one?". Just the sound of one flying by will send you shrieking in terror to safety. But again... I've never known anyone that has been stung by one... and I KNOW they sting, that's how they paralyze the tarantula so they can lay their eggs on the paralyzed body for the little baby Tarantula Hawks to feed on. Nature is so beautiful.