What's the funniest fail you had during sex?

I broke my left hand, but on the first week I have a cast and my hand can’t really do anything, touch anything support anything. I’m just there on top giving it my best and my wife just starts laughing uncontrollably. Apparently for a couple minutes already I’m just going full on left hand Roman salute while sexed up. To make matters funnier the cast is a very bright almost neon looking colour. Not a fail but failed sex for sure. Let’s say neither of us _sieg_ed that day.