Well, that wasn't very nice.

Upon calling a penalty in Thursday night's game between the Nashville Predators and Columbus Blue Jackets, referee Frederick L'Ecuyer was caught shouting some profanity.

Now, he's certainly not the first person to swear at a hockey game, but he might be the first to do it at center ice with his mic on.

Copyright © 2017 Score Media Ventures Inc. All rights reserved. Certain content reproduced under license.