How many crankshafts have you replaced on your car?
I don't think I've ever had to replace one...my VW, which now has more than 120,000 miles on it, is pretty reliable although I'd stand by my original comment. To an extent though although I do derive some comfort from that belief it doesn't really change my behaviour; I may not drive along thinking about breaking down all the time but I do spend a lot of time in the air wondering which field would be best if the the engine stopped.