Leaving mentally insane (temporarily due to drug use or permanently) people to rot on the street next to a trailer with showers, sack lunches, and an endless su

Leaving mentally insane (temporarily due to drug use or permanently) people to rot on the street next to a trailer with showers, sack lunches, and an endless supply of clean needles is more humane than placing them in custody with a slim possibility of getting sober? Not everyone is able to ask for help; sometimes there needs to be an intervention.