As I'm sure you guys noticed, Carl Edwards slightly bumped Kyle Busch to take the lead of the Bristol race with a few laps to go. Busch unsuccessfully tried to do the bump and run back, but didn't do it, and ended up finishing 2nd.
After the race was over, he drove up to Carl Edwards's car and hit him after the race was over. Carl rightfully spun him out thereafter (because Carl's the man).
Then in his interviwe, he said that that's how he'll race Carl in the Chase if that's the way he wants to race.
Imagine if Dale Jr, Juan Montoya, Kevin Harvick, and Jeff Gordon did that too.
He's one of those rare personalities that likes dishing it out, but doesn't like receiving it. He didn't have a problem wrecking Dale Jr, Juan Montoya, Johnny Benson, Joey Logano, etc, but Carl bumped him (didn't even wreck him), and he didn't like it.
Not only that, but he retaliated while they were both in their cars like a girl (Steve Wallace summed him up perfectly), and didn't bother to go confront him face to face in victory lane (Kyle Busch is about 6'0 and 140 lbs. Edwards is 6'2 and 225 lbs, and you guys saw the Men's Health picture of him).
Remember when he went over to Steve Wallace after the Nationwide race in Richmond, and went over to him (with his helmet on) while Steve was still in his car and stuck his head in Steve's face, and then ran away as Steve was getting out? He did that again.