When in the shower with your significant other pretend to drop the soap, have them get it and then fart in their face . Deny any smell. Give them the stanley steamer.
When you are taking a shower, and a family member or roomate comes into the bathroom and takes a shit at the same time. The mixture of shit smell and hot humid air is absolutely intolerable.
No fucking way, John. Wait till I'm done with my shower, asshole.