Welcome to Pet Talk!!
That is histerical about your kitties and the garbage can!! I don't know what it is with cats and strange places...bags, boxes, garbage cans...LOL
Mine haven't actually gotten into the garbage can, but they do love dilapidated boxes and bags and papers on the floor! Oh and the laundry basket too!

Do try and get a pic of your kitty in the trash can for us!!
**hugs**