The fact that I seem to have a Klingon cloaking device secreted somewhere about my person, and I cannot find it to switch it off!
I have a big, red 4x4. Like the one in the link, only red.http://www.landrover.com/imagery/global/nameplate/photos_and_video/exterior/defender/2597688/05-L316_12_INDUS_90SW-850x425
It has a massive bullbar on it, spotlights, it is like a small block of flats. When I stand next to it my head comes up around where the side mirrors are, and I had steps installed so I can get into it.
But apparently it is invisible in traffic. I constantly get cut off, turned in front of, etc. The thin end the other day was the pedestrian who didn't see me - he waited till the teeny little white car in front of me (which my car towered over) went past, then stepped out in front of me. Then he looked again, apparently the cloaking device momentarily disengaged, he saw me this time, and jumped backwards onto the curb.
It also works when I'm on my bike, which is almost fluorescent orange. On the bike though, I sort of assume I'm invisible anyway, so no big deal. I am quite good at avoiding the blind drivers around me.
But it also works as a pedestrian. Don't ask me how this works, but it does. Crossing the street - someone coming the opposite direction will apparently see me, make eye contact, and then veer directly into my path so I have to dodge them
. It drives me bonkers!