Yep, depends what the problem is. Splayed legs is easily fixed although apparently you shouldn't breed from them (must admit I lose track of which had been splayed and which haven't after I've take their hobbles off). I also had a duckling with a crumpled foot that was fixed relatively easily. But today I had my first non-fixable problem. It was a gosling that I'd really battled to get out (he didn't even pip internally in the egg and I could see him trying to and after a few days when all the others had pipped externally I decided to help). Turned out his leg was completely wrong - hip somehow rotated so his leg was just backwards somehow. I couldn't work out how I could possibly rotate it and even took him to the vet for a second opinion (had been in contact with the vet anyway because I lost one of my adult geese to peritonitis yesterday

). He agreed that there was nothing to be done - at which point I bottled it and asked him to dispatch - in part at least because I'd taken my four year old daughter with me who was looking forward to holding the little one on the way home again.
If I'd had to dispatch myself, I was going to use a mini version of the broomstick dispatch with a pencil over the back of his neck, right up behind his skull. Probably a bit easier with a gosling than a chick at that size due to the longer neck.
H