I kill an average of two scorpions/wk in my house, and every panic/scream/run/run back/look for can of hotshot/scream some more/fire/run outside episode is unique. I'm totally down with your bro.
The Japanese have the right approach to the problem (as well as six-inch long venomous centipedes and millipedes that raise welts when they walk on you). It crawls, it dies. One time I was sitting watching sumo with my landlord with four mosquitoes circling above. He giggles and produces this spray can and barely touches the top, not even in their direction. I'm thinking "what's that going to accomplish?" and then they all went into little death spirals and crashed onto the table in front of us. If it had been a cartoon you'd have heard their engines screaming. We were warned in dire terms that smuggling that back into the States would result in life in the Big House, but it would have been worth it.