Well da DOG has to be positioned with in da vehicle differently bro.

If it continues to sit on you sails rub its nose hard on the cracked sharp monofilm untill some blood is evident or Pull a batten out and flogg it.
If the behaviour continues and it sits on your sails being a smart ass,
On da way home yell and screem at it lock da breakes up and smash it into da cargo barrier.In most cases they will find another spot to sit.