He also said he'd "kick the s*** out out of the little ba***rd [Massa]" after he (That is, DC) caused an accident involving himself and Massa in the Oz GP, so he's no saint either.
We all get a little fiery if we think we've been wronged don't we?? Besides, you don't really think it was DC's fault do you?? 
I think it was just a racing incident. The vision peripheral vision from Formula One cars is atrocious (and was never great anyway).
I wouldn't have had Coulthard down a gentleman. He complains too much.

Ayrton Senna: WDC 1988,
1989, 1990, 1991
McLaren: WCC 1974, 1984, 1985, 1988, 1989, 1990, 1991, 1998,
1999, 2007McLaren: WDC 1974, 1976, 1984, 1985, 1986, 1988, 1989, 1990, 1991, 1998, 1999, 2008