By all means, go look up what's involved in a stent through the urethra. Or just cross your legs and contemplate good fortune.
The stone did pass last night. It was easier than the first one, probably because I knew what was happening and not because it hurt any less. All my cats, who normally don't get along all that well, were in there watching me, so I had a whole audience for it. Two minutes after it passed, my houseguest knocked on the bathroom door, telling me she had to pee really bad. To my credit I only considered murdering her for about 30 seconds.