I'm not sure if it will help to be honest as Lucy is a girl....but I'm sure others will have suggestions.
Lucy will Pee on my bed any time she can manage to get on it..I think its because the cats sleep with us and she can smell them on the bedding.
My only answer now is to keep my door shut and keep her out of the room. It works for us.
Will the coins in a can work with this kind of issue? I wonder? there are a few who have used this technique successfully with other training issues.
I really hope you can find an answer Bo is a beautiful dog