Yeah - one of the worst I've ever seen personally was when one of our pitchers took a line drive come backer right in the nose. It was ugly. The kid was a great pitcher in his sophomore year and never pitched again. Pitchers' junk tends to be pretty shielded from their motion but they are always looking in at the plate.
Both times I got nadded on the base pad I was just going back routinely and the pitcher's throw was off - or was it?
I've been hit a few times on the mound but once was off the side of the head and the lower ones were in the gut or off the hip. I was kind of a Kent Tekulvy (sp?) type pitcher so I was practically falling down on my side as I delivered the pitch. I was a little on the wild side you might say. Elbows just a flailing away but it worked for an inning or two.
I've been hit in the throat or chin more times than anywhere else while playing SS - never in the nuts. Clearly I put my glove where it was more important to me.