I have a border terrier (as you may already no) and he is a year old now and he still chews the house up. he only does it when me and my boyfriend go out, he never used to he just started doing it, now from what i've been told its because hes bored, so i bought a treat ball didnt work, i tryed leaving old clothes with my and my boyfrends smell (ewwww lol) on, didnt work, i tried leaving a tape recording of my voice on, didnt work. it's gotten so bad i have had to resort to cageing him when we go out and he hates it.
please help me i don't no what else to try