I am thinking this is a bad idea, but my son keeps bugging me about it. He just got home from having back surgery and wants to vape. I have an extra Lavatube but only have rcr123a batteries as 'extra' batts. So you know what I'm wondering ... is it too risky to use in my Lavatube? I told him no, that he'd probably be making a pipe bomb, but he keeps saying it will work. I need to know for sure. Will it safely work?