If you do not have time to self-care, you are doing it wrong.
Absolute borderline cases, but I still had to bust one out:
Basic Training, Fort Sill: Morning dook, probably 15 guys yapping about bullshit and its my first time away from home, different lifestyle, barely any sleep, my dick got hard for the first time in a week, nothing to jerk off to, these fuckers are loud, no lube, we gotta toe the line in 18 minutes and I'm eating up shower/shave time to get this nut.
Work Release, one of the richest counties in the nation, everybody gets arrested eventually: No stalls on the shitter doors, showers are past my stall, I gotta do it reverse-handed with my dick pointed into the bowl while trying to look natural. 8 months of purely medicinal cums cuz that shit aint ideal for busting anywhere near a good cum.