Two young fans spent some time licking the plexiglass in front of them at the Colorado Avalanche game on Sunday. The action was caught by TV cameras and the announcers had some fun trying to figure out what exactly was happening with the Pepsi Center glass.

The announcers put out a couple of different theories, including how licking the plexiglass could be good for the immune system.

Plexiglass, as a general rule, does not taste good. But maybe we are all jumping the gun here.

Maybe there was some barbecue sauce spillage on the glass we didn't see?

Because barbecue sauce is delicious.