He comes back and puts it back on free of charge. My mare got her foot stuck on somthing (maybe a root) the day we had to go to fair and he met us there and fixed it. It was bent all kinds of crazy ways.
Just make sure she isn't losing shoes a lot. If she starts to pull shoes, and never did before, it might be time to look for a new farrier. My horse never lost a shoe before and then she and a bunch of other people's horses that use the same farrier started to as well. Then my horse came up lame because we discovered the the moron has trimmed her foot very poorly. When she lost hers I found it immediately so he put it on free of charge. Not sure if they'll charge for a new one or not but I would talk to him.