Wait you're not the guy who does fucking food reviews on Pornhub are you?

Dove right into that bullet.

Besides the issue of restaurant rules about bringing in outside food, I'm pretty sure OP ran afoul of some Health Department regulation or another. So, yaknow, breaking the law.

HUMILIATION

This is Reddit, not TikTok. You can say porn. You can say OnlyFans. You can say sex, shit, fuck, goddamn, & Tiananmen Square.

Your first FU was going on a "distillery" tour in Nashville. Those are tourist traps & a lot of them are buying the same swill from the same distillery in Iowa. Next time you're in Nashville take a day trip out to Lynchburg & tour the Jack Daniels distillery.

Your second FU was buying Nashville hot chicken from somewhere other than Prince's. The food truck or the stall in the 5th & Broad building are both acceptable, while the location in Antioch is more authentic; but in 2018 you could have gone to the original storefront location in East Nashville, which sadly burned down a couple years ago.

Even if the sample tube attaches to the exterior of the space station, at some point they will have to bring it inside to transfer it to the reentry vehicle & every set of hands touching it is another opportunity to contanimate the sample.

TIFU: I thought r/TIFU was supposed to be things that actually happened, not a creative writing prompt for 13-year-olds

Our atmosphere is mostly nitrogen already, so you probably wouldn't notice any difference. Since there would be a higher gas pressure of nitrogen in the air than in the blood, the lungs would absorb inhaled nitrogen, then because there would be a lower gas pressure of oxygen & CO2 in the air than in the blood the lungs would expel those gasses. The exchanging oxygen out part would happen in any oxygen-deficient atmosphere, like e.g. an argon purge or very thin air, like if an airplane's cabin depressurizes.

>However without the breathing apparatus and no suitable oxygen to breath then your body will not be triggered to expel carbon dioxide and you will just not be able to breath at all which will lead to death.

Lungs work as simple gas exchangers; nothing "triggers" them to absorb oxygen or expel CO2. Atmospheric air has a higher concentration of oxygen than the blood in the lungs, thus oxygen will permeate through the membrane due the higher specific gas pressure on one side. Same thing but in reverse for CO2.

What you might have been thinking about is the mechanism that causes the body to feel the need to breathe, which is triggered by high blood CO2 rather than low blood oxygen. Since as long as there is a lower concentration of CO2 in the air compared to the blood CO2 will permeate across the membrane & leave the body, this mechanism won't see anything being wrong even in an oxygen-deficient atmosphere. This is why, for example, a vessel under nitrogen purge is so dangerous; if a worker enters one they won't feel like anything is wrong until they drop unconcious in about 30 seconds.