Old cars which are in poor condition but have a cult following, or were once very common on the roads but are now almost extinct (a.k.a. "street furniture" of the past). Examples would include British Leyland, Datsun, Hillman, Austin-Rover, etc.
The effects from being in close proximity to people with extreme Autistism, and their ways rub off on you and you start noticing that you are speaking and or making strange noises to chime in with their choir of nonsense.
The tendency of instant message software like Yahoo to turn groups of characters into smileys that you didn't want to be smileys, making it difficult to get your point across.
I tried to IM "Nice ass! (*)" to someone and it changed the (*) into a lame star smiley.