Years ago, I had a golden retriever named Louie who loved pillaging trash cans. I tried yelling at him whenever he stuck his nose in the can. I tried different models of trash cans with hard-to-open lids. I tried putting the trash can inside a cabinet. But it didn't matter. Louie was a trash can fiend, and he wouldn't be denied. It got to be such a problem that I eventually called a dog trainer friend for advice. She told me to put mousetraps in the trash cans.