i have an english bull terrier cross lurcher 12 week old pup, he gets a minimum hour walk every day and has access to chew toys all day. I've tried squealing, saying 'no' in a stern voice, filling an empty tin with stones and shaking it to try to startle him but i just feel like nothing is working and i'm at my whits end. I'm 19 weeks pregnant so i feel a sense of urgency to try and break this bad habit but i've just ran out of ideas.
Someone please help!!