Didn't know whether to put this in training or breeding really as to my untrained eye I would call this 'flirting' Percy is a 18 month old entire chinese crested. When he is feeling a bit overexcited or amorous he wil scratch furiously at Willow's (16 month GR) coat, both front paws furiously scratching which ends up pulling out undercoat. It can be on any part of the body but quite often her chest. Sometimes this is followed by humping her. Now Willow doesn't mind this, infact she loves it as being a goldie she loves a good scratch and rub. It doesnt damage her coat as he doesnt do it often enough in the same spot. So the behaviour itself isnt really a problem I was just interested if anyone had any views on it or had seen it before? He did do it to a friendly male german shepherd we were walking with the other day as well. As well as some other female dogs that we meet. Obviously I am very careful to watch the body language of dogs involved as it may not be welcome by some.