No Stinkin' Leashes Moderator
Join Date: Mar 2003
Location: SF Bay Area
One reason why it's not a great idea to teach sit by pushing down on the butt is the opposition reflex - think of a sled dog pulling into the harness. Some people actually use opposition reflex to strengthen a stand, so pushing like that can actually work against you to get the dog into a sit.
Desensitizing her to be touched all over her body, starting with you and other members of your household that she knows and trusts (using treats to reward as you touch her feet and ears, her belly, her tail, etc.) and then moving to others as she becomes comfortable with it, is a good idea, but I'm more concerned that your trainer is using such outdated and ineffective methods of training. Do you have other options for classes nearby?
Keefer 8/25/05-4/24/19 ~ The sweetest boy
Halo 11/9/08-6/17/18 ~ You left pawprints on our hearts
Dena 9/12/04-10/4/08 ~ Forever would have been too short