I feel kind of bad about my sisters dog. Every time I watch her I get a milk bone and she has fun trying to snatch it from me. I'll hold it right under her nose, behind her ear, make her chase it and search for it and she'll love every second until I finally let her have it. I placed it in an open drawer across from the bed thinking she'd manage because she always gets it on top of dressers, and I guess she didn't think she could handle it because it was too low for her so she started getting agitated.
Of course I made she she got it but never seen her upset like that, and I've hidden the biscuit in all kinds of spots, she never got impatient sniffing around.