When I give Sylvia a chew stick she walks around with a confused look for about 10 minutes! Then she waits till Harley isn't looking and she puts it in a blanket or in a cushion. After that she makes like she is burying it with dirt. She rubs her nose and flips her head. I always tell her, "Syl there's no dirt there!" After a few hours, when even I forget where she put it, she goes and gets it. I thought she was a little dumb for trying to bury things in the house, but she remembers where she puts them too!