This might be the most intimidating anyone has ever been while getting carried off on a stretcher. And by that, I mean it's hilarious.
CSKA Moscow goalkeeper Igor Akinfeev was getting carried off after a mid-air collision with Spartak Moscow's Welliton and injuring his knee on the landing. Akinfeev was apparently more angry at Welliton for smashing into him than he was in pain from that knee, so he decided to yell and point at the Brazilian striker from the comfort of his stretcher.
Here's the hit that start it...
Videos via Brasil Mundial FC