Agreed re: Don is a class act.
I spoke with Don twice in the two weeks before the Olympics (once at a party when he had a good bit to drink!), watched him work out on the track once (repeat 800's around 2:20 at SUNY Plattsburgh, the pre-Olympic training site) and went out on the marathon route in Montreal to cheer him, Bill R & Frank S on. Don was careful to avoid overtraining: before the Olympics, he said he did not feel that the higher mileage of 120-140 miles per week that some other marathoners were doing was best for him (he had tried higher mileage). Instead, he said he got better results with 100-105 miles per week, although he advised that mileage is an individual matter that is best adjusted to the individual athlete.
Besides Froot Loops (the correct spelling), he also said in a RW article that he ate lots of peanut butter and jelly sandwiches. He was travelling a lot at the time. He is known for his sense of humor.
Additionally, I'd like to point out that the main media source of accusations against Cierpinski that I am aware of have been Frank Shorter's suspicions. They have been reiterated many times over. I have yet to see any actual evidence that Cierpinski took any doping substances. A 2:09:55 in 1976 for a runner of his 10k ability is not out of the ordinary, considering the degree to which his training was carefully periodized and physiologically monitored.
I think that many who accuse others of doping without having evidence lack sufficient faith that bodies & minds can adapt to intelligently planned training. Cierpinski did extensive psycholgical training (incl listening to classical music to relax instead of only being able to go out for a run), used chronobiology knowledge to reset his internal clock to Montreal's time zone, ran from 5k to 60k per day in training, and had blood lactate montoring done while doing long time trials at close to marathon pace. He may have been one of the most scientifically developed marathoners in history. Using science to develop athletes is something that is being better applied by more countries than it used to be, but I still haven't seen many countries that used the talent identification and sport-science approach that Cierpinski's country did.