bug zappers

Today I learned that the guy who makes a lot of the energy medicine machines, which supposedly 'zap' your ailments into non-existence with some sort of radio frequency electromagnetic radiation, has been at it since the 1980s, when he was an out-of-work math instructor. Now he has an awful lot of money and lives in Budapest.

Apparently no one has investigated whether or not such devices actually work, even by the placebo effect. I expect it's a little hard to take seriously someone whose device has a 'zap mode.'