Check this out: Family of electrocuted thief gets $75,000
I have no pity for the crook, but might there be an argument that the booby trap posed a danger to police, firefighters, etc? I think not — the clearly posted signs warned them, and if that means that they have to let the place burn down, its the bar managers responsibility. If the signs weren’t posted, then I think there is an argument for reasonable expectation of being able to enter a building to prevent crime/fires in a city.