It's essentially part of the job description for a mail delivery person to deal with protective dogs, but I don't think cats are usually expected to cause any trouble with the mail.

This particular cat either really likes mail or strongly dislikes the mail delivery man at its house each day. Either way, it makes for a great video. And shout out to the guy delivering the mail to this crazed-cat each day, I feel sure it's the highlight of his day.

Watch how feisty this feline is when the mail arrives here:

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