Ha, I remember one kinda like that. A lady called me for help with her own computer, one of her problems being that a flyer she was trying to print would only print the first two lines, then nothing else. The problem turned out to be an apostrophe. Her new version of MS Word automatically made a curly apostrophe whenever she typed a normal, straight-line apostrophe, and her ancient printer couldn’t deal with the “new” character. I changed it to a straight apostrophe, and it printed fine.