[Pontiac]

The first person to try this must have been particularly fearless, or particularly hungry. Alternatively, they started with something smaller than a mammoth, and worked their way up.

Or he was the victim of the proverbial "I triple dog dare you".

[where's_the_Outrage?]

Which later became “Here, hold my beer for me.”

[libertylover]

Or he was the victim of the proverbial "I triple dog dare you".

Did he say, "Hold ma beer"?