Grumpy Grandma Is the World's Greatest Miami Heat Fan

During last year's NBA finals, the Miami Heat's home crowd gave a master lesson on how to fail as a sports fan

Looks like many of them could use some lessons from this grumpy grandma

Uploaded to YouTube on Wednesday afternoon, the clip, above, shows the unidentified elder getting, er, heated at LeBron James and company, their opponents, the referees — basically acting like a testosterone-laden sports bro transmogrified into the body of one sassy grandma

Watch for yourself — and try not to crack a smile. If you're a self-described Heat "fan"? Be sure to take some notes Read more...