Safety catch

摘要

In Lake Wobegon, the fictional town invented by the US humorist Garrison Keillor, "all the women are strong, all the men are good-looking, and all the children are above average". In keeping with Keillor's gentle dig at the inflations of self-bias, if Lake Wobegon had research laboratories you can be sure that all the experiments would work, all the results would be significant and all the scientists would work safely.