I have purchased 3 of these Vape Pens from 3 different distributors. These these things leak juice no matter what trick you try! But the most serious and DANGEROUS leakage problem is the one that leaks behind/ around the FIRE BUTTON! I have had TWO instances of these devices AUTO FIRING and almost causing FIRES! The 1st was in my backpack where I smelled smoke and was able to grab the device but it was so hot that it burnt my hand! The 2nd one happened with the device just sitting on my nightstand, beside my bed at night! Luckily, the sound woke me up when it AUTO FIRED and I was able to turn it off! Once again, the battery was hot and the FIRE BUTTON didn't want to shut down! I am a long time Vaper and know how to handle multiple mods and other devices, including storing my batteries correctly! In my opinion, these things are dangerous because the juice leak behind/around the FIRE BUTTON shorts out the board and it can no longer tell if it's OFF/ON! I KNOW that I had clicked the device OFF because I ALWAYS check my devices and I even gave it the draw/ inhale test to insure the device was OFF even after it gave me blink that it was off!! # OCD/ Careful Vaper!