This is the very definition of stupid.

Our friend here thought it would be wise to snap a selfie on a track where dirt bikes were riding. You see where this is going, right?

He gets out of the way of the first bike, but there's no saving him from the second bike, which looks like it may have chopped off his arm. The video cuts out, leaving us with two very important questions. One, is his arm still attached? Two, did the accident wipe that obnoxious smile off his face?

There are all sorts of dumb places to take a selfie and this one is right up there. Maybe we should heed the word of a real hero and realize selfies are just dumb.

Selfies -- take them at your own risk.

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