worst pain

Three men are talking about their worst pain.
The first guy says, "I once had sciatica, worst pain I have ever had."

The second guy says, "I once had to pass a kidney stone, worst pain I have ever endured."

The third guy says, "You gents have no idea what pain is, I once had two of the worst pains ever.
I was hunting and I had to take a crap, so I whipped down my pants and hung my ass over a log
and BAM, a bear trap clamped right on my testicles".

The two other men both yelled "ooooooooooooooooohh" while covering their genitals.
"That is the worst pain I can ever imagine, what can be worse than that?"

And then the third man says. "When I came to the end of the chain."