Benny the Bull messes with everyone at the United Center.

Benny messes with the commentators:

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He messes with the special guests:

He messes with the sideline reporter:

He even messes with the refs:

Now, Benny is taking his talents outside the United Center and messing with the Cleveland Cavaliers mascot, Moondog, on Twitter:

Moondog responded to Benny:

This can start a Twitter war between the two mascots, and Moondog is firing shots at the Bulls fans.

When one Bulls fan asked why the Cavaliers’ mascot is a dog, Moonday responded with:

Here’s what people said about Benny’s tweet: