By ROWAN MOORE GERETY

A few months before I moved in, Serge was sitting in his house cleaning an AK-47 when it went off in his lap. Looking down, he found his hands were still intact, and he decided then and there to stop selling weapons. On the French mainland, he’d gone to school for aitiopathy, a form of physical therapy that seeks to provide treatment without pain. Down the line, he still looked forward to opening a private practice; gun running wasn’t worth the risk of losing any fingers. Eventually, Serge’s friends would tell me about his arsenal, though I never saw it myself. Each of them had seen a weapon at his house, and they realized, comparing notes, that the individual guns they’d seen were all different. In fact, Serge seemed to have a very large collection.