A 10-year-old asked adults to light a cigarette for him as part of a social experiment, and a surprising amount of people helped him out. The video was produced by Dennis Cee, a YouTube social experimenter who does some cool stuff that proves a point—such as "Would You Help A Blind Man?" and "Would You Help A Lost Child?"—but also does some obnoxious stuff where he annoys people until they punch him in the face—such as "Farting In The Hood Prank" and "Bust A Nut In The Hood Prank." It gets a bit manipulative and message-y, but the last interaction with a guy who had lung cancer is pretty crazy.

Sources: YouTube/Dennis Cee TV