I had a female employee come to me to complain years ago. She had had a disagreement with an older male employee (thankfully not mine) some weeks prior, and since then, every time he walked by her cube, he’d pause at her doorway, fart, and then keep walking without saying anything.
She at least was aware of how absolutely ridiculous it was, but legitimately didn’t think it was something she should have to deal with. One of the stranger management issues.
While at your desk make direct and sustained eye contact in silence. Once you know you have him gently say “poop poop” then violently shit yourself. Everything is about shitting, except shitting. Shitting is about power.
I learned to sneeze like that long before dabbing was a thing and it wasn’t until someone commented that I just dabbed on them that it connected those dots.