Meh, I'd probably respond like Gordon Freeman.
Your incredibly inept neighbor possessing a rail gun cannon and the off chance it is ready to go and he's about to fire it, withgout looking where it is pointing which is right at your house and toward your gas and plumbing mains.
We'll murder them all, amid laughter and merriment...except for the few we take home to experiment!
"I cant see S***! --YOU GO TO HELL!" --Tourettes guy