Question.....

Uh..... I don't know....
I mean, he just lighted up some paper and pretended it was a cigarette, right? Or, did he actually have some drugs hoặc tar inside it? Was he inhaling the smoke in? WHAT WAS THE SMOKE?? SMOKE OF BURNING PAPER hoặc SOMETHING ELSE?

He might be okay. As long as it wasn't weeds hoặc anything.

Well... it's smoke... If bạn inhale too much smoke (in an extreme case like if you're trapped in a ngọn lửa, chữa cháy for too long) it can be very dangerous for your life... But a little bit of smoke won't kill bạn even though it's not a very good idea...