BTW: These are the same people who ate each-other's flesh (Yes, human flesh. They had a part of their thighs removed and ate each-other's meat, properly prepared) and prepared and ate a fry-up in fat retrieved from liposuction (I think that's next week's episode)

Actually, they endured it for TWO HOURS, not just ten minutes and at an intensity that doctors determined is comparable with the pain women feel during contractions.
So, not during labor, but only for the contractions pre-labor.
I've seen the interview with the guys and the people who administered the shocks on dutch tv.