There was a story going around the ham radio circles in the '50's
about some out-of-tolerance readings on a radar in the DEW Line
installation that were observed about the same time every Saturday
night. It turned out that a technician was opening up a waveguide
before going out on his Saturday night date thinking he was
temporarily sterilizing himself.

The sub-arctic temperatures at the DEW line would take care of his concerns.
Scott Fraser