that is nuts...i'd actually call your local precinct and ask them about it, could be the guy's in debt for drugs or something and they're hunting him down to beat the crap out of him, who knows...either way, it sounds fishy. not the kind of drama you want outside your door, anyway.
good luck with your kitty, my old cat had that problem consistently for a few years when he was young, frequent urinary tract infections almost led us to have him put down (at that point in time, we're talking like 1989 or so, the only thing they could really do was cut off his weenis and he'd have continence problems forever, sounded horrible...). we started feeding him a diet of wet food only, with the lowest ash percentage we could find (1.5% is ideal, but under 2% is good - the ash content in dry food is much much higher and contributes to the crystallization of their urine) and he took albeta tablets every day for the rest of his life...no more infections. lived to be 22. hope any of that was helpful in some way, lol.
I took your suggestion and went out and bought a saag paneer to try. Hope it's yummy! That's a crazy story. They were wearing something like old school uniforms? How odd. Maybe they were just nerds looking for a little fun.