Child birth is very traumatic for the dads too if they're squeamish - which I am. It's like watching a wet St Bernard trying t get in through the cat flap.
Rugby player Danny Cipriani might have a shout at worst pain with having his hip dislocated then having it popped back in but getting a b*llock trapped in the joint.
http://metro.co.uk/2008/05/23/you-need-balls-to-soldier-on-after-injury-but-that-s-rugby-151322/
A kick in the balls is much, much, much, more painful than childbirth and that is a FACT.
I've watched my ex-wife give birth twice. She went through all that first time around and was happy to go through it again. At no point in my life have I ever thought "You know what I'd quite like -...