Old-school Paul Johnson on Twitter? Even he knows there are non-believers out there.

So he supplied a little proof Wednesday, showing the dry wit those closest to him have come to expect.

For those that don't believe I'm actually tweeting... twitter.com/GTPaulJohnson/…

— Paul Johnson (@GTPaulJohnson) February 27, 2013

Johnson joined Monday after hesitating for quite some time about putting his thoughts into 140 characters or less. In fact, his sports information director, Dean Buchan initially set up a Twitter account for him in December 2007, but it stayed dormant.

Two folks finally helped convince him to put down the ink blotter and join -- his daughter, Kaitlyn, a student at Rice, and assistant director of operations Mike Huff. And that has sent bloggers and social media watchers into a tizzy. Johnson has noticed, too, taking to his new Twitter account to joke about one blogger who called him a curmudgeon.

Dry wit, indeed.

But do you want to know a little secret? Johnson has left several ACC coaches back in the Stone Ages.

Jimbo Fisher and Dabo Swinney -- the leaders of the two highest ranked ACC teams in 2012 -- not on Twitter. Let's see anybody out there call those two guys curmudgeons.

We counted only eight ACC coaches with active Twitter accounts.

Steve Addazio @BCCoachAddazio

David Cutcliffe @DavidCutcliffe

Dave Doeren @StateCoachD

Randy Edsall @RandyEdsall

Larry Fedora @CoachFedora

Al Golden @GoldenAl

Paul Johnson @GTPaul Johnson

Mike London @CoachMikeLondon

The Twitter world waits on the rest of you guys.