These crazy Chinese blokes show off their balls of steel

Meet the Kung Fu Master nicknamed "Iron Crotch," who goes about his day teaching blokes how to take a shot right in the gonads for a living.

He's convinced a bunch of gullible students over time that taking heavy blows to their family jewels will cure erectile dysfunction and premature ejaculation.

Now we haven't seen any solid evidence that proves his theory, so maybe don't try this at home.