mongrels on high demand

Recently, I was watching a programme on pet maintenance hosted by a vet. He was discussing about the merits and demerits of owning the " foreign" breeds as pets and in the second part of the series he was discussing about the local breeds. Of late,there has been a great demand for owning a mongrel as they are least susceptible to infections, diseases and low maintenance because they inherit characters of two different breeds. Sofar, so good. on seeing this programme one incident came to my mind that a holywood actress proposed bernard shaw i her proposal letter she said"if you and I get married we will have a child of yopur intelligence ad my beauty". for which bernard shaw replied " in case, we have a child your intelligence and my beauty what will happen".