Norwegian Fjords

Hooray, my Norwegian Fjord is finally refusing to go in the trailer at home. This may not sound like a good thing, but actually it is because now I can TRAIN her to go in when she doesn't want to, like when we are somewhere else and are hot and tired and really eager to get home. She still goes in easily at home when the trailer is in restaurant mode, but when I act determined to get her in, she refuses. So then I do as my trainer/instructor told me. I hold her with a halter so she faces the trailer and tap her behind until she steps forward. Every time she takes a step I stop tapping immediately, and then repeat.