We're not free enough to buy ball-comforting underwear? When somebody kicks you in the nuts, you might react as if it's the most painful thing that's ever happened to you.
Which, in a weird way, makes it less surprising that occasionally guys might let a hyena eats their testicles, or bring a lawn chair into the shower, or play rugby without athletic support.
Yes, I can understand wanting to be bated and on camera at that.