I'm lucky I guess. I don't smell even if I've gone a few days between showers (very rare. I love to be clean. I shave everything.)
But a long time ago, in the 90s, when I was in my early 20s, I used to work 24 hours a day for days in a row. The manic part of my bi-polar was in full effect. Anyway, I had switched to crystal deodorant (hippie deodorant. It just cam e in a big rock crystal form then.) and I had worked 2 days in a row with no sleep and no shower. My boss loved me so it was all good. But I got called into her office (8' x 8') to give a run-down of the status of all the projects on my plate. And I was utterly fetid. Nasty as fuck. Damn you hippie crystals!
I reeked. My other boss came into the office and crinkled his nose and was like, "WHAT is that smell?!!? It smells vile in here." Fortunately, my other boss was cool about it and just said, "Shut up".
It was one of the most humiliating moments of my life. Never again, hippie crystal. You fucked me once, I won't have it happen again. I don't smell as a rule and it's my belief that the hippie crystal brought out a previously unknown stench.
It's never happened again, even when I've skipped showers. Beware the Hippie crystals. Now I stick with that commercial shit, even if it's going to cause armpit cancer. Actually, I don't have the problem with the regular shit. Even if I skip a few days I never smell like I did when I used that hippie crystal. I didn't know I could even smell so bad. The smell was like an acrid, bitter thing that burnt your nostrils.