Having lived in SF awhile back, I can also testify that many of the homeless are frighteningly aggressive, and can get quite menacing (as mentally ill and drug-addicted people do) when attempting to intimidate old ladies into giving them cash.
The "water sprinkler" question is almost moot, since they have now all been removed: but what now? Forcible removal? Cops at the doors every day?
Nobody wants a "solution" involving barbed wire, dogs or handcuffs. So seriously, as a caring person: what do you say?
Those people are vagrants. The cops needs to make them vacate. Let them go to shelters.
Ummm.... MINISTER to them?
Pope Francis builds public showers and a barbershop for the homeless of Rome
Luke 14:12-14
Then Jesus said to his host, "When you give a luncheon or dinner, do not invite your friends, your brothers or relatives, or your rich neighbors; if you do, they may invite you back and so you will be repaid. But when you give a banquet, invite the poor, the crippled, the lame, the blind, and you will be blessed. Although they cannot repay you, you will be repaid at the resurrection of the righteous."
I think it was a great idea. These churches regularly have people voiding and moving their bowels on the foyers. So hose them. Makes sense.