To keep wildlife from getting habituated to human garbage, many locations in western states of the US have been using critter proof trash receptacles for many years.
Sometimes they can be a little difficult to figure out, especially if the graphical instruction is missing.
We came across one at Craters of the Moon where someone obviously got more than just a little frustrated – and irate – when they were unable to open the lid.
We thought that perhaps the lid was broken, but, nope, it worked just fine for us.
To be fair, the receptacle with the note was missing the instructions on how to use it. On the other hand, we didn’t even realize they came with instructions until after we came across one just down the road that had one.