But, dogs are smart, especially dogs like Charlie, and they will take advantage of one person, and know that they can't with another.
I've wondered if we will have an issue with our dining room table, too, in the new house, as it's next to a south facing window. It sounds like you have it handled, and I like the idea of something from a thrift store.
I'm glad that your 2nd squirrel is still with you.
Love All Life, Thank You For Posting! :)