When I lived in Brooklyn, there were several regular panhandlers who stalked kosher restaurants, even coming up to your table begging or trying to sell some ratty ties or pirated videos. The management usually tossed them out. There were also panhandlers stationed regularly in front of kosher groceries. When I refused to give to one filthy woman, she screamed, "I hope you get cancer!" at me. Unfortunately, she was standing between the glass window of the establishment I wished to enter and its door. When I opened the door, and she got her filthy cursing mouth (and other parts) smushed, I guess that shut up her diseased ranting for a while, and saved other patrons from her predations.
I remember a guy in the Wal-Mart parking lot telling people he needed just $5 more to get enough gas to go home because he was from far away and was stuck there.
He was stuck there again a week later.
A couple of years ago we were sitting in a nice Oxnard CA restaurant having dinner with some friends when what was obviously an illegal alien came by the table, interrupting us, and tried to sell us those darn plastic roses.
I complained to the waitress who told us the manager felt sorry for them and allowed them to sell in the restaurant. I told her to get the manager. When he got there I told him we would no longer be patronizing his restaurant since he allowed nasty, illegal, street people to go from table to table harassing people who are paying good money to eat in his restaurant. I told him we would also be having our after dinner drinks somewhere else and left immediately.