How about one where Kenny gets tired of his parka and spends the day without it. During the day he walks around, like normal, but everyone else now knows what he's been saying all along. In the episode half of what he says is beeped followed by disgusted looks by everyone except Stan, Kyle and Cartman (who are used to Kenny's perversion). In the end the mayor passes a law which makes Kenny wear his parka while in public.
Alexa is a net.ko0k. She thinks that aliens will destroy Jews, and everybody else, in order to keep us[tinu] out of Space.
She also believes that you can get "free energy" from hydrogen welders, and that there is a conspiracy to control the world by Lockheed/Betchel/QEII. She also k'lames to have psychic powerz which she can use to watch you (but she can't see signs you may have hanging on your wall, for some reason). Oddly, the aliens made her have sex with another man, and when her husband left her, she k'lamed that it was because the State Department had lied to him about how she cheated on him with a "blonde, blue-eyed remote viewer". She now hates her (ex)husband Jon Cameron, because he left her when she cheated on him.
Apparently, she thinks that humanity must die because she couldn't keep her lips shut. And she keeps changing her mind about when TEOTWAWKI will occur.