A timid fart is all you get. You can feel there's something more than gas in there, but it's just not moving. You give it a push, and it nears your asshole. But then it doesn't go further. Maybe it touches the rim, and if you could bend that way, you could probably see it through your stretched anus.
But it doesn't come out. There's no way it's coming out without getting some blood in your stool. It's just not ready to leave your body. There's nothing you can do but suck it back up and wait for later. You wipe, just to make sure, but you don't expect to actually see any shit on the toilet paper. Surprise! There's a thin brown stripe. So you wipe again and again and again, and it just doesn't stop. Jesus hell! You didn't even get to shit, and now you've got to put up with this?!
Finally it subsides, but now you're a bit raw and in a foul mood. You pull up your pants and wash your hands, still feeling bloated but now there's a touch of anger and sadness. There's nothing to do but wait until your log is fully incubated. Time to go back to work and wonder when the bastard will be ready.