I am new to this forum. I have just acquired a 5 year old desexed male border collie 'Bear'. He has been an 'outside' dog and naturally enough lifts his leg on the furniture when I let him inside. Fortunately I have tiled floors. I intend to have him inside so need to train him out of lifting his leg when he is inside. Any tips other than keeping a close eye on him and whenever he looks like lifting his leg scolding him.