I have recently started a new relationship. My boyfriend has a two Border Collies, I have a Boxer and two King Charles spaniels. We are now a family of 5 dogs. One of my boyfriends dogs, the male, pees all over the outdoor furniture. I have a large back yard but he continues to lift his leg on the furniture. The dog has not been de-sexed, he is around 5 years old. I feel that if he was de-sexed, his behaviour may change for the better. Any ideas on this dilemma and if de-sexing is not the answer is there any other deterent to the problem.