system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: why are most sink faucets in public bathrooms designed in such a way that it is impossible to wash your hands without your hands hitting the back of the sink?
gpt
Because public restroom designers have to design not just *for* a regular patron, but also *against* undesirables. One of the undesirables is the "sink bather", and by preventing that sink bather from cupping his hands adequately to scoop water up to his body for a rinse, that's one step towards making his sink bathing less convenient, which is one step towards convincing that guy to give himself a whore's bath somewhere else. It's the same reason all those water-saving automatically-timed knobs turn off after an inadequate amount of time - it makes sink bathing less convenient. Sure, they initially designed them for the careless customer, but the timing intervals get lower and lower the closer to a "bad" part of town you get.