Suspect I had a mild case of this once. I had a period where I experimented with various ways of brewing. Once I made a cider from a sourdough starter, and drank a bottle of it very early in the process - maybe 3 days in. I think that somehow made a bunch of live yeast colonize my gut, because the day after I farted a ridiculous amount of times, like every few minutes. Didn't make me drunk or anything though. I had elevated farting for a while after, especially when eating carbs. I attribute it all to fermentation CO2 production. Situation gradually went back to normal.
You just casually invented a Potion of Greater Flatulence and didn't tell the world about it?
Isn't this the reason our livers developed the ability to process ethanol anyway? Everyone's body produces some minute amount of alcohol just by eating the right combination of foods.
I guess ABS is just this process taken to a level where you no longer need to go to a bar. Just eat a loaf of bread and you're off to space.