Odd Language #100: Unexpected Meaning

I saw a sig on USENET that quotes an interesting headline:
“Actor sent to jail for not finishing sentence” — Knoxville, TN, News-Sentinel, 1989-01-21

The issue: I expect that many people would think “finishing sentence” would refer to communicating. (There is at least one of us: me.) On second thought, it is probably referring to completing a jail sentence.