My lovely new car now has a big old hole in one of the back headrests where my darling dog has chewed it. He managed to get his skinny head around the side of the dog guard, turn it at a 180 deg angle and munch away. We had left him in the car boot with a lovely soft bed to lie on, weather cool and overcast (so he wasn't hot - probably more likely to be a tad cold if anything) while we had a bite to eat in a cafe.
I know you're not supposed to leave dogs in cars, so I guess I deserve to have my car chewed, but I have left him in the past and he's been fine. Was he just having a bad day, or will he now chew every time? (i.e. chewing's a great new game when in the car)
He has chewed things in the house (door frame, phone wire, door etc) before if left for long time (i.e. 4 hours, which seems to be about his maximum) but I've put this down to the fact I rarely leave him for more than 2 hours at a time.
Can I train him to be left for longer periods? (Realise this is slightly different topic to the car issue).