OH you're not alone! Ky does this outside ... I only let her have bones in the backyard in the late fall (I'm trying to get the grass to grow and the flowers LOL). Since we get so much snow, and it kills everything, by late fall (November or so) I let her go to town in the backyard with her bones ... she has a BLAST let me tell you.
And yes, they do remember. When I tell Ky to get her bone, she goes right to it!
Marion’s Zoo-Kyleigh, Raylan-cat, Echo-TAG,