You did one of your first shows at Sunset Scavenger with my wife's cousin, Maurice. Since then you've been on your way to hundreds of shows. I've got another idea and this is based in SF. A friend of mine, ( I know- more friends, connections etc.) works for SF. He saw an opening for his son, a Marine who spent time in Iraq, and asked him if he was interested. After taking all the tests and becoming qualified, he got the job. He cleans the reservoirs in SF and the Sierras. These are not your standard reservoirs, but the covered and underground reservoir. No light, no escape and plenty of claustrophobia.
Let me know if this interests you and I can get you the contacts.