That guy got off light. Several years ago, in a similar robbery attempt, someone shy of a load of IQ points, entered a closed chicken fast food restaurant. What he didn't count on was that the flue he was using was slick with grease. As a result, he did a quick, but short, slide right into a vat of still-hot cooking grease. When the place opend the next day, the employees found, not chicken frying, but the perp that slid in the night before. I still get a laugh out of that. What an idiot.
I feel sorry for the poor schlub who had to clean out the fryer.