Some people have a poor digestive system. When they eat some food that flatulence easily, they especially want to fart. Moreover, the fart is particularly smelly, but the strength can be controlled to make the fart sound less loud. When there are many people, you only smell the stink, but you can't hear the fart. At this time, you can pretend as if nothing happened and let others think that you didn't put it yourself.
Some people fart not smelly, because it is not indigestion, but may swallow too much air when eating, resulting in air in the intestines, which needs to be discharged by fart.
This fart always pops up inadvertently. And the sound is particularly loud, which makes people feel particularly embarrassed.
Therefore, when we were young, the old people always said, fart doesn't stink, fart doesn't ring.
So if you have indigestion, eat less flatulence and massage your abdomen often. You won't feel embarrassed even if you go to yoga.