There is one near home. When I passed by I saw one man stopping a couple in the street and explaining if they couldn’t go inside and give him the money.

Sort of like a beggar, but asking the couple to go inside, scan their iris then giving him the money (since it’s free money anyway). I am not sure how that would work in practice, since I just passing by. But they were paying USD50~60 , a significant amount to make the ask worth it.