A Glitch in the Matrix

Does anyone else ever experience anything that can only be explained as a glitch in the Matrix? Things that strengthen your belief in black holes and the Bermuda Triangle and plotlines like the ones in Vanilla Sky? I have had two such experiences in my life - one I can't remember anything about, other than that it was really, really weird (maybe I was flashy-thinged), and the other has to do with a sweater.

I had this deep purple, clingy, v-neck sweater once. One day when I was at my boyfriend's house, I was wearing the sweater over another shirt. We went out to his car, and it was warm outside, so I took the sweater off and put it in the back seat. Now, at this point, I was already in the car, so we had a closed system. We drove about 2 miles to a gas station; I got out of the car, and I decided that it was not as warm outside as I had thought, so I reached for the sweater. When I went to put the sweater on, I saw that the right sleeve was entirely gone. No unraveling, no thread or yarn anywhere in the backseat. The entire sleeve was just missing, as if it had never been attached in the first place. Now, when I was wearing the sweater earlier that morning, it had had both sleeves. So, where did the sleeve go? I should add here also that not only was I completely sober; I wasn't even hungover. And that I have never used recreational drugs. And that I had a witness. And I have never found that sleeve...