My keys. But I'd rather not talk about it. It was pretty embarrassing.
I wasn't paying attention and stuck an 18650 in my mouth... standing in the bathroom shaving, stuck the nose hair trimmer in my mouth...thankfully i noticed before pushing the button. Tried to vape my electric toothbrush...It always happens when I'm in the bathroom or on the computer. Oh, and i was eating peppers in blue cheese the other day and tried to vape a red pepper. Actually took me a second to figure out why I wasn't getting a solid hit LOL
try a pepper to pepper adapter. it increases air flow just enough.