LoL, funny you bring this up, had the same thing happen to me about a month ago. But just last night while watching TV in the dark I grabbed my flashlight to look and make sure I hadn't accidentally rotated the body of the Merlin and shut the
juice flow off, I saw what at first I thought was another cat hair inside the Merlin but on closer look, it is a crack in the glass! Very fine crack, don't know how or when it happened, it's not leaking so I'll wait until it's almost empty and I'll have to swap it out for the smoked color spare that came with it.