Wolves.
There’s your answer.
Reintroduce wolves to San Francisco.
Wolves always look to kill and eat the most vulnerable.
Nothing more vulnerable than some hobo with his pants down squatting to take a Democrat on the sidewalk.
SCOOPS!
That’s the correct answer!
THE SCOOPS ARE COMING!!!!!
THE SCOOPS ARE COMING!!!!!
With the way the homeless act in SF, I wouldn’t be surprised if they ended up training them....
Woof!
Then again, there are no dog laws in SF (as another poster commented), so we solve one problem, and exacerbate another: piles of dog and wolf poop.