Stuck on happens when the bladder won’t inflate again. Dried juice on the inside can stick it together as will liquid on the outside filling the space it is in and keeping it from expanding. A drop is usually more than enough. Theyre very small and not very strong. The trick to keeping them alive is to not let ANYTHING and I do mean anything, get into the the area where it is or inside it. And capillary action can pull liquids there. They really are absurdly delicate. There’s a reason people went to buttons.Yep, I had one before, used to get stuck on. I'm interested to see how it holds up too. Interesting to have the option, as long as it doesn't fail on.