"This is my best friend LeiLei. She is a 5 year old “Decker Brat Terrier” (Boston Terrier / Decker Rat Terrier) who has been with me for about 4 years now. She is very calm, but becomes hyper at the site of a tennis ball or any type of fun activities. She loves kids and rides in the car. "
The Decker Brat is not a purebred dog. It is a cross between the Boston Terrier and the Decker Hunting Terrier. 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 either breed. 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.