In my experience, my boy was not any harder to train than my female. Both about the same. Sweet as a button. I think there's a lot more research that needs to be done before breeding. Once you use a male to breed, he will mark, and probably be a bit aggressive and you can't get rid of that by neutering him after one litter. You need to make sure the female your cousin has is sound and genetically appropriate for breeding. There's different ways of testing for those and your vet can give you more info on that. The breeders here can certainly give you more information but please do you research and think it out really well as it is a huge responsibility. Good luck
