Our Mickey would start to shake (as he is supposed to to let you know he has something go say), but then he wouldn't stop! He would shake until I shut him off. Or he would shake, play a joke when we pressed his tummy, and then five minutes later shake and tell the same joke again, and then five minutes later..... you get the point. This happened at MGM and at MK. Both times I brought him into a store that sells him, they put his nose up to some sort of screen thing that is in a drawer near the register, hold him there for about two minutes, and then he would be fine for the rest of the day.
Since I bought him on Ebay from a terrible, lying, disreputable seller, I would like to blame her for this, but I'm sure she had nothing to do with it (unless it was not new like she said, but used and perhaps she knew it had a problem?) ...................P