This was Bob. Bob was an average caver.

He tried to cave all the time. He even tried flushing caves out of his system (oh, it was the cave flushing him out of the system).

He even tried chilling the caving idea, that didn't work either.

A person can be driven to consume great amounts of Subterranean Gargle Blasters to stave off the urges, but remember, once bitten caving stays in your blood!