I've offered multiple times, but all have refused. Usually I'm out on my bike and offer at red lights in the wide open, so I don't expect many too.
Maybe if i was smoking a joint/blunt and they wanted a hit or something. I guess it depends on the context of the situation. 's
I once had a girl come to my door for some school interview/project thing. I invited her inside, and she asked if I was 420-friendly & would smoke her out. Yes, why not? If it had been a guy, I probably wouldn't have though. He might think I have the loosest slots in town.