I had a red squirrel as a neighbour at my former residence where I grew
various Sarrs in a large picnic cooler. Aside from chewing on various
bug-filled pitchers (she almost ruined a S. purpurea, but she always
avoided the crown & rhizome: no bug soup, I presume), she apparently
decided that this cooler was the perfect place to make a stash. She would
dig down almost her body length trashing everything around her and leave
all sorts of junk in there. I have found, variously: a very soggy pizza
crust, a chunk of candybar and a neatly rolled up length of yarn. After two
weeks of trying to discourage this behaviour, I realized that she had won,
would always win, and I moved the cooler.
Rand