Examples of pretentious training:
-- Intervals that are multiples of 500 meters: 1000m, 1500m, 2000m, 3000m, etc
--Float recovery: 6 x 800m in 2:25 with 400m "float" in 80 seconds. Or, from a recent Zap Fitness workout: "4 x 10 minutes with 1:30 assertions." WTF?
--Glomming onto whatever new thing is the "secret:" Vibrams, Hudson's hill sprints, whatever new workout is in Runner's World or Running Times
--Any kind of heart rate training
What else?