Why does getting hit in the shin hurt so much? Seriously, it's the worst place to get hit if you're a guy. OK, so it's probably the second-worst place, but you get the point. It's up there.
And one dude found this out in especially painful fashion by taking a ricocheted golf ball off the sensitive area. Someone then posted this slow-mo video of it happening:
The positives? That's a nice-looking lag on the downswing!
And that's a pretty sweet hat. But yeah, that's going to leave a mark.