G-straining is no worse than trying to have a good dump when you have constipation - I would have thought most people would have shown up any anomalies well before signing up!
I always think of Austin Powers during G-straining...
[Austin Powers is drowning a man in the toilet]
Austin Powers: Who does Number Two work for? Who does Number Two work for?
Cowboy: Yeah, that's it! You show that turd who's boss.