Although my avatar is a different animal (duh) nowadays I think I resemble the ermine quite a bit. Solitary, predatory (well, the senses tend to be hyper, in a way, on alert here) and I can be quite aggressive if needed (don't go around hitting folks on the nose of course) but the ermine's been known to defeat a large dog when threatened.. and I like that.. for it's a tiny creature. The changing of it's fur colour (fox red to white in Winter) fits me also a bit. Oh, it's quite a smart and playful animal too. (blahiah.. sorry)
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The next person has an object, an amulet, an item, a little something (?) he/she cherishes and has the object for quite a while now. (e.g. I have a WWII knife, I found myself, 30 years ago, which I cherish)