Bit of an odd question but curious on some input from present owners of the device. My question is how durable is the Darwin device? It has great reviews but the side swivel kinda makes me nervous. Basically i work out doors (drive trucks, do construction ect) and have been known to have my current ecigs fall out of my hand (or shirt pocket) from time to time. Has anyone dropped this thing a few times on accident and how does it hold up to taking such a fall? Never had a problem with my ego, 510's, 808's ect but with the cost investment of purchasing a Darwin and knowing that i will eventually drop it by mistake one day figured i would ask. Thx.