The problem for Grosjean is that with every accident, his nervosity only goes up.
I agree with this.
The only way to probably solve the problem IMO, is probably have Grosjean start as many GP's as possible and hope that he doesn't crash at the start, and that we can go as we arrive in New Jersey and say, you know what, the only incident Grosjean has had since Japan last year was at Montreal.
I think a bit last Torres the past year. He went through that 6 months when he couldn't score and the pressure became more and more, so much so that when a chance did present itself, it began to play on his mind that he hadn't scored and that he must score soon. Then he got too largely irrelevant goals in an FA Cup match and a few weeks later the goals started coming back, including a vital one against Barcelona and top scorer at Euro 2012.
Because like Torres, who began to doubt he could score, so the more he missed, or Hamilton/Massa who began to doubt they could reach each other cleanly and so conspired to crash into each other at every race for a period last year, I think Grosjean will begin to doubt he can start the race cleanly and therefore lead to more accidents.