What's the WORST thing you've ever vaped?

I ask because, as a newbie to mixing, I have found some pretty bad flavors (tiramisu and anything in pretty much any %!) Lol. I also have experienced what bark and woodchips taste like when they find themselves down your mouthpiece and on your coils. Not pleasent btw. Sooo… Whats your worst?

anything that I make


There are a couple of threads on this already: