Hi Razor, I wouldn't worry. You've probably just got some juice on your hand at some point whilst filling it etc' and it could easily happen. Fake or not I wouldn't worry about that either - I've had many different vaping products some OK and some copies for sure but the build quality is generally so up and down anyway that I've had fakes outlast OEM's so I wouldn't worry about that either. In other words - don't worry, be happy and vape on.