Guess it is horror giving how obsessed with baths ppl are, tho i feel like a part of him might subconsciously want it/do it on purpose (wonder if his own sweat triggers him) if he goes out into the rain without prep versus waiting or having a car pick him up or so lol [like unless his parents are also super strict or doesn't know, he could've studied in the library/after school too]
(tho if it happened in the pool you'd think it'd only happen with chlorinated water but entertaining for what it is lol)