Is WiFi like a fart?

I am mystified by wireless internet. I don't understand all that power just floating around in the air - you'd think it would drive cats crazy (and maybe it does). Well, whatever. I was at work today and having a very hard time getting the wireless to provide a decent signal to my laptop. Sometimes it seemed if someone walked by, shortly thereafter I would get a temporary boost in signal.

WTF?

It wouldn't last, to the point that I eventually resorted to roaming around, computer in hand, looking for a better signal. Pathetic, right?

Well, it seemed like a plausible hypothesis that the wifi signals were being wafted towards my computer by the person walking by. Thusly, I figured wifi must be like a fart - you can waft it around.

Turns out the technologically inclined set me straight with talks of wave lengths and radiation. They  may be right, but I prefer my fart theory.