To Professor's comment:

Correct, and once you realize other people don't normally give two shits (just think if it was you, would you really care?), the second thing would be cops. In my city, you see cops like every 5 cars, and it's extremely busy in most places. If you can't act normal in public, then you shouldn't smoke in public. But, if I see a cop, I won't flinch a muscle...I often forget I'm smoking and don't even pay attention to the cop (possibly take a blast right in front of 'em, but if you aren't bothering them, they won't bother you).

That's the thing, if you're not asking for trouble, it won't come. Don't try to tell me, I do this all the time. Around here, there's more important things a cop needs to worry about then 1-10 guys walking down the street smoking cannabis. If it's a nice day out, I simply cannot resist the urge to walk and smoke.

Oh and forget 'choking down a blunt', that's the last thing I'd ever do in my life. If there's really an issue, just put it out or throw it.