Re: Gullibility is no excuse.
It's quite funny to point out to the numpties that they get much more irradiated by going outside on a sunny day.....
I kept my office / workshop entirely clear of interference by PHBs, HR muppets or anyone else I didn't want to see by putting up a "Radiation" sign on the door and a colourful warning about "Radiation Testing in Progress". I really can recommend this approach for all engineers who just want to quietly get on with their jobs!