i don’t know why i never thought about it until JUST now, but microwave ovens are tiny little faraday cages. i just saw one of the dev guys put a cell phone into the microwave and wait a while. i was trying to figure out what he was doing and he explained that he was trying to get the cell phone to lose signal from the carrier.
“oh YEAH!” if radiation isn’t leaking out, waves probably aren’t leaking in, either!