My first job was at WalMart. I worked in Electronics.
There was a guy that was perfectly nice, a good worker and everyone liked him, but sometimes his body odor was overwhelming.
I mean the type of body odor that actually sticks in your nose long after you were away from him.
The nickname behind his back was "Stinky" (clever, right?). I never had the heart to tell him but I guess management did.
Never saw him again.