Shortly after 9-11, I was traveling home from San Diego to Pocatello along I-15. I stopped for gas and a restroom break. The waste basket in the bathroom had a moderately long, handwritten note in Arabic taped to it. The basket was on the floor and rotated to keep the note mostly out of plain view. It may well have been a "dead drop". Too bad. It was discarded in dumpster near Nephi, UT. Oops.
Gee - that's too bad about that Arabic note. Sheesh, accidents happen.
1998, or 1999 I was at a gun show. One of the vendors had quite a collection of odds and ends including quite a bit of old jewelery. I bought a necklace from him. It's obviously Middle Eastern. I didn't realize until I got home that the main pendant hanging from the chain is actually a box that opens up. Inside was a piece of paper with arabic (?) writing. Hand written, about 4 sentences I would guess. Still have no idea what it says.