When he had one of his temper tantrums, Chessie used to get quite loud, so loud that I could hear him outside with the doors and windows closed.

At about 8:30 in this video of him and Casey, you'll hear him go into one of his temper tantrums. This was about 24 hours after he and Casey were introduced.

http://www.youtube.com/watch?v=inKTB-lEm3c