There is a scientific reason why your farts smell worse in the shower.

Normally I preempt the article with some information to create clarity or make things more relevant, but not this time. Because you all know you’ve done it. There are a few reasons. The one you might have guessed is that a shower is small, so the gas is more concentrated, thus more smelly. 

The high turbidity of the air in the shower also circulates the gas faster and more efficiently. Also, high humidity and high temperature conditions enhance the senses of smell and taste in humans. That means the farts don’t smell worse, we can just smell them better than usual. 

More interesting fart facts: 

• The average person passes half a liter of gas a day.
• Most of the fart gas is just air you’ve swallowed. 
• Beans are notorious for farts because they contain sugar that creates gas in the intestines. 

(Source)