A rocket in my pocket?
I've given this the lowest possible rating because this device was dangerous. I used it successfully several time over a period of several years. Today after charging I put it back in my pocket and thought nothing more about it - until my pocket started feeling hot. When I pulled the device out I found all 3 blue lights flashing. It was impossible to turn the device off and it just got hotter and hotter. Eventually I put it outside with a bucket over it to allow it to discharge itself safely. I dread to think what could have happened had I not found the problem as quickly as I did.