A coworker in the same building as me uses downtime to knit at his desk. Apparently he will sell these knittings on Etsy for a good deal of money. (>$8k over the course of a year)
I obviously don't care, but I am certain that he is also getting paid by the company while he works on his for-profit knitting.
All judgement aside, what's the worst or most likely possible punishment he could be subjected to as a result of this activity?
Location Northeast US.