It is polite of you poolman2 to exclude the above group. However no matter how a guy looses his balls and/or dick, he is of no use to a woman.
I know of a guy who stepped on a "bouncing betty" land mine in Vietnam.
The mine is designed to explode at waist level for maximum effect. He was planning his R&R in Hawaii and to be married there. Well the shrapnel damage included removing his penis and ********* him. He survived but needless to say the wedding never took place at all. No one can expect a 20 year old woman to go through life with someone who cannot make love to her and make babies. Or even having no balls to bust.