Fans are throwing snowballs in the Colts and Chiefs game. Andy Reid got angry.

Chiefs fans are having fun at Arrowhead Stadium in their game against the Colts.

Maybe too much fun.

It appears that one fan threw a snowball at punter Rigoberto Sanchez during the first half.

And then it continued.

Andy Reid told fans to "use their heads."

It looks like the Chiefs won every aspect of the first half. Even the snowball fights.