CBS's bracket site went down on Thursday

Let this be a lesson for those of you who decide to first fill out your NCAA tournament bracket in the hour or so before tip-off on Thursday.

Don't. Do. It.

Those folks who signed on to CBSSports.com sometime after 11 AM Eastern on Thursday - with the first game tipping off at 12:15 PM - to start a bracket or do some last-minute tweaks had serious trouble, with the site crashing or behaving erratically.

Here's a sampling of the subsequent freakout on Twitter:

You get the idea.

We've reached out to CBS for comment to see what happened.