My 4.5-month whippet puppy picks up everything and anything she sees/smells on a walk. I'd say every 10-15 secs she is eating something or chewing it, and this will be anything from poo, to plastic, to plantlife. I know this is normal behaviour for a pup, however there are obvious risks with letting her do this and reasons that I have to prevent her. She's already had one bout of diarrhoea which the vet said was from 'indiscriminate eating'. I have done a lot of research about 'leave it' training etc, so I'm not looking for advice on that. To be honest, it's quite aggravating reading about leave it training because sometimes it seems like every dog owner/trainer in the world assumes that all dogs will do anything for treats. My puppy hardly cares about treats at all. Sure, in a home environment with no distractions she'll do basic commands for a treat. But if there is a single thing going on (so basically everything on walks) then that will be ten times more tempting to her than a treat and the treat is no distraction or incentive whatsoever. She simply doesn't care about food or treats that much, it's a job just getting her to eat her normal food, so the leave it training techniques I've read about are next to useless. My question is does anyone have experience with muzzling (using a basket muzzle) to prevent indiscriminate eating on walks? Or does anyone know of what the potential downsides are? (Apart from other people thinking your dog is aggressive which I don't mind about.) I definitely don't want to resort to that if it means she'll have to wear it forever. But I'm wondering if this is just a phase? It's incredibly frustrating because I have to walk her on the lead all the time, apart from at the enclosed dog park and my garden, meaning that I sometimes use a long lead when in an open area so that she can have a proper sprint around, which she really enjoys. But this makes preventing her from picking things up impossible. It's only if she's on the short lead that I can stop it. But then you get people saying that dogs need to run around etc. Gah! So many contradictions. Sorry for depressed rant. Bad walk this morning... scooping poo out of her mouth with my fingers, and when I'd finished she bent down and ate the exact pile of poo I'd just taken out of her mouth.