Jokes # 62 : Unable to locate space to save document ... ! WordPerfect

My favorite was a few years ago, when DOS was still king.
A court reporter, I did work for called me at home one Saturday morning.
She couldn't get her WordPerfect (WP) to save her document. A very BIG document, due at a lawyer's office Monday morning. A document she had been working on for about 12 hours.
I made a trip to her home, and she explained to me that she had tried to save the document but received an "Out of space" message, so she went into her WP file manager and deleted a bunch of files to make room for her document. She was sure she didn't need any of the old files, since their names weren't familiar to her. Among them was WP.exe - the WordPerfect program.
Since it had to call itself to run the save routine, or the file manager routine, or anything else except text creation, she was stuck forever between the proverbial rock and hard place. No way to save, no way to shell out to restore WP.exe, no way to even print what she had typed in - all 400 pages. We print-screened all 400 pages, gave it the last rites, and rebooted to restore her WP files. She did, however, learn a new respect for file names she didn't recognize.