You be the judge: should my husband teach our dog how to bite so he can enter a competition?

Roger is an amputee, and having a dog is great for his disability. Having to be at home more with our first baby was hard on him, so Eddie has been brilliant. Roger has taught him amazing stuff. When they go to the park together, a crowd will gather and watch them do tricks. Eddie’s recall is great and he hangs on Roger’s every word. But it was difficult, too, as at first Eddie didn’t get on well with our other dog, Kady, and having a puppy at the same time as a newborn is a challenge.