Even if you're just going for a fun run, you will want to really look hard at whether he is at a good weight (and on the lean side) and reasonably fit. Pudgy or out-of-shape dogs are at increased risk for injury. If you're not sure if he's at a good weight, ask someone. If he's under two, tell the lure operator and huntsmaster that he's young and that it's his first time. Good lure ops will keep that in mind as they run the lure.
I do not feed a full meal the morning of the lure coursing -- just a small snack. Try to get your dog to poop and pee well in advance.
Don't wander too far off. Know the running order (should be posted or ask) and be ready to go down to the line at least 1 flight of hounds before your turn. It's super frustrating to others to have to wait on someone whose name was called, then they get their dog out of their vehicle/crate, get it leashed up, etc.
Dogs should not wear any collars during the run, even during fun runs, and hopefully someone there will be able to loan you a slip lead and can show you how to release your dog safely.
After the "tally ho", and you slip your dog, do NOT talk to anyone, or yell "GO!" at the dogs or otherwise be a distraction to the hounds, the huntsmaster or lure operator. Be ready to get your dog off the lure as quickly as possible after the huntsmaster tells you to retrieve your hound. Try not to trip over the line or let your dog tear up the bags too much. Tell your dog what a good boy he is after you've leashed him. Move out of the way of other dogs coming to the line -- they've just watched the other dog have fun and they can be pretty whipped up.
Walk your dog to warm up a bit and after he runs, walk him until he stops panting.
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