I don't admit that my deskmate farted in class. How to deal with such people?

There is an old saying that laughing at fart has no ambition! Doesn't that man fart? Besides, you accuse others of farting to their face, and others have the cheek to say that they farted in front of the whole class. Don't cling to small things. Next time I think about it, I just smell it and feel stinky. You can cover your nose in class. After class, you can leave and stay. Don't ask others to fart or say that others fart really stinks. Don't give others what you don't want them to do! If you were released that day and people said that about you, would you be happy and kind?