"Rocco the Olde Boston Bulldogge / Chihuahua mix. Mini Boxer looking, great apartment dog, kid friendly, low shedding, and an excellent temperament. No breathing problems because he has a longer snout than a Boston."
The Olde Boston Bullchi is not a purebred dog. It is a cross between the Chihuahua and the Olde Boston Bulldogge. The best way to determine the temperament of a mixed breed is to look up all breeds in the cross and know you can get any combination of any of the characteristics found in any of the breeds in the hybrid. Not all of these designer hybrid dogs being bred are 50% purebred to 50% purebred. It is very common for breeders to breed multi-generation crosses.