1) Rooms are not anywhere near airtight.
2) Convection fans do not have the power to produce a significant enough vacuum to be even noticable, much less dangerous.
The people would be in more danger from an electrical fire resulting from faulty wiring in the fan (a possiblity marginally increased by the extra wiring in the timing circuitry) than from suffocation.
Originally posted by: Johntk5
I am viet and my parents think something similar. So sad, that we believe such nonsense.
Let's see, other things:
- Knock on wood. I had a teacher who, every time she'd say that, and she wasn't standing near something wooden, she would actually look around for something and walk over to it to knock her hand on it.
- Cracking knuckles causes arthritis. This has been disproven. What is most likely the problem is that people who do things that make them susceptible to arthritis (strenuous, repetitive manual activity) are more likely to want to crack their knuckles, thus creating the illusion that the very audible knuckle-cracking is the culprit.
- The number 13 here, or 4 in Japan. Or 666. Where my dad worked, he said that someone's PC terminal number was 666. The person literally refused to work at the PC until its designation was changed. How many buildings don't have a "Floor 13" on them, despite the fact that the floor that follows the 12th will always be 13th. Arctic Silver 5 - AS4 was skipped because 4 is unlucky or something like that in Japan.
- Opening an umbrella inside. Yeah, really dangerous.
- Break a mirror, 7 years bad luck. The only reason why I can see some truth to this is that if you break glass over a bathroom rug, you might find tiny glass shards for the next 7 years, though even that is unlikely.
- Certain objects bring luck. Deep Space Nine showed that the only way of changing the odds of certain things happening is to make neutrinos all spin the same way, and I'm fairly sure that rabbit's feet or quartz crystals cannot do that.
