The Parkes radio telescope had issues with fast radio bursts that they couldn't attribute to what they were tracking. Turned out to be a microwave oven in a nearby building where the door was opened before it had stopped.

While I wouldn't subscribe to standing in front will cook you idea, opening the door prematurely does give off radiation. Standing in front of a microwave beam dish may be a different story - knew an ex-Telecom tech who told a possibly tall tale of cooking chicken.

https://theconversation.com/how-we-found-the-source-of-the-m...