I totally agree with all JadeComputerGal has said.The people you work with don't have any way of knowing that, and I don't understand why say things to upset you. JoJo has had two huge changes recently, and ducks are very much creatures of habit. It's not at all unusual for them to refuse food or be very picky about it even when less traumatic things happen. I'm not surprised he doesn't move from the mirror. He's probably scared from being in an unfamiliar place, so he's sticking very close to the only thing that seems familiar to him.
It's a good sign that he's eating mealworms, but of course he can't live on nothing but protein. Have you tried chopping some greens to put in a water dish for him? When ducks are refusing their normal feed, they'll often still eat their favorite treats. You can also give him peas or any other healthy treat he likes to help balance out his diet. It would also be a good idea to get him a supplement as Amiga suggested. Do you have a Tractor Supply Company store anywhere near you? Some of those carry poultry Nutri-Drench in the store. That's a great supplement for times like this, and the fact that it's used by mixing it with water makes it a good choice for you.
