I can shed my former self, only to have my newer form shed again. I can be tricky, charmed, sneaky, and deadly, although I am considered to some, as a house pet. What am I?

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Incorrect Guesses
gecko snack spide looke plant emmsm hamst onion cater trees snakw kitty flats lizar rocks cobra tiger death mouse kitte snail shell puppy
The first user to correctly answer this riddle was Chimpoo