Radio waves are attenuated by human tissue depending on their frequency but I would be surprised if one person's body produced a total cut off. I have noticed one door in our house that seems to weaken the signal if closed and of course WiFi doesn't necessarily penetrate equally well to all corners of a house because of attenuation by walls, especially solid ones.
Lack of public toilets in towns.
Soop's warm and welcoming kitchen for kindly folk.