So, I travel a bit and have had no trouble at airports. Batteries with the rest of my electronics and liquids and tanks/carts with my liquids. I prefer the OMG with a tank because it lasts a long time. Well, last week I was far far from home and had been carrying my OMG in a pocket (of sorts, I usually put it in my bra since it is chilly out and I wear sweaters all the time and business pants never have big enough pockets). Anywho, I happened to be wearing a shirt that didn't really permit the concealment of the OMG in my regular stashing spot, so I threw it in my bookbag front pocket. I had done it before with no problems. Well, for whatever reason, it ended up wedged between something because about maybe a half hour later (after stopping for coffee and making it to my car) I went to get the OMG and it had melted. It was hot and smoking and I nearly burnt myself. I was sad. It didn't damage the bookbag other than the liquid draining into the pocket, but the nib and the tank were toast as well as it warped my hotel key card. I placed an order online for a replacement (which was waiting happily for me when I got home) but in the meantime I stopped at a gas station to pick up a temporary ecig. I am spoiled by Vapor4Life for sure. I'll take backups with me in the future and take the battery out if I'm storing it in my bookbag. So the point of this, I guess, is that if you are traveling with a OMG, take out the battery when you put it in a bookbag or make sure it isn't going to get wedged somewhere where it might accidently get turned on!