Purposeful Farting

Anyone else having a trend of purposeful farting? I’ve taught 10-12 for 16 years and haven’t experienced purposeful farting. A kid forces one. They call each other out, they put their shirts over their noses. I’m ready to send a mass email to sophomore parents about purposeful farts. I have no problem talking to them about their purposeful farts, but it’s becoming suffocating. 🤣😩