LOL Susan! My fear aggressive dog would walk every day with me and if anything was out of place, he would immediately bark at it to “chase it away”. The change of seasons and yard decorations were often a crazy time for him.
Labs is suggesting the exact way to desensitize the dog. Just remember to keep it really slow and don’t push. You have to work under the dog’s threshhold. If you are not really familiar with the dog’s stress signals, it might be best to wait until your trainer can work on this with you. The shaking is a definite signal of stress. If she is at that point, she really should be removed from whatever situation you are in. Here’s a service dog link listing stress signals that might help:
http://servicedogcentral.org/content/signs-of-stress-checklist
