I haven't. I'm not even sure I've seen one. I've definitely read about them, but I'm not sure I understand what they smell like or what they taste like and how is it possible that people can comfortably eat something that they agree it smells horrible. We're not talking stinky like cheese or salami, but actually unpleasant if I understand correctly.
I got a couple of these and I absolutely hate them. I no longer work there, these shirts have the company logo on, they're of a color I don't like, the fit is awful.