Is it normal that i chase guys to suck them?

Sometimes, at night, when I am walking in the streets alone, I try to chase some hot guys who seem drunk or open minded to try to convince them to let me suck or at least to masturbate them. I think I've done it around 10 times or more. I didn't succeed in some, but did in others... Last month I was waiting for the bus and saw a guy on the other side of the street. He was shirtless and with a short short. I saw him grabbing his cock and I got really horny and decided to follow him. It was dark and I started talking to him. He said he didn't have any money to get the bus and I asked him what he would do if I paid his ride. He said "Anything". Then we went to a hidden place and I sucked him. I think he was the hottest guy I've ever sucked. Has any of you done something like that before? I try to stop doing it but I can't resist when I know I'll succeed. Feels good but I wouldn't do it if I could. And it's dangerous...