Cats and yarn - they go together like peanut butter and jelly! Only...they don't! No matter how many times you see it in movies or cute cat calendars, you should never give your kitty yarn or string to play with! Your cat can swallow it, and the end result can be really bad. Same goes for giving your feline friend milk, too many cuddles, and lots more common mistakes pet owners have no idea they're making!

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