The people in your classes must reap many rewards while those who don't understand will suffer nothing but frustration. The dog is such an intelligent animal when he is allowed the right opportunities. In our classes about the 8th week, I have all the people do an exercise where we exchange dogs. Everyone trades about 5 or 6 times. All the dogs have been taught the same commands and all the handlers know them too.
All dogs become simply, good boy or good girl.
I give commands and the class follows them. They do forward, fast, slow, settle, easy, and about turns. Yet with all the many breeds, with all the varieties of priorities and temperaments, all of the dogs learn the same behaviors. All of the dogs do fine, no problems at all. Their own dog is fine with someone else.