I have adopted 4-5 weeks old puppy 3 weeks ago, that was left in the elevator to die.
He is now 7-8 weeks old. I bought him a collar to get him accustomed to it when I start walking him which will not be for another 4 weeks until he gets another vaccine.
He only bites playfully, lightly and we train him with "Ouch" when he bites harder during the play, but again those are all light bites.
When I put him collar today he turned into a wild beast, started chewing it and when I tried to take the collar out of his mouth, he started going for my hand and bit me pretty hard. He is still a puppy so it is not that bad, but if he was older, it would be a significant bite.
Now, we have two problems:
1. How to get him accustomed to collar?
2. How to train him not to get aggressive when in those specific situations like putting the collar for the first time?