How to Do Vape Tricks 7 Easy Vape Tricks to Wow Your Mates Households warned over common vape mistake that can cause 'ferocious' toxic fires that are nearly impossible to put out WHAT IS A VAPE TRICK? cometovape Lithium ion batteries can be flammable and release toxic gases when not used correctly. It's important to check your batteries for physical and electrical damage, exposure to extreme temperatures, and any defects.