Hi all, wondering if anyone has advice. Pup is 16 weeks. We're starting to train him to walk on the lead, he's fine in parks but on the pavement tries to chew every little thing we pass. Pavements aren't that clean unfortunately so seeds and twigs but also bits of glass, fag ends, bits of plastic, stones etc and this evening's treat - a screwdriver bit! The method for walking on lead we learnt in class was to go really slow, one step at a time so they want to come alongside you - so I don't want to be pulling him away. but also don't want him to ingest something harmful. Any ideas? Thank you.