We had a guy covering a NASCAR race at Talledega many years ago. This was back in the day before cell phones and the like. Reporters called in collect to a central switchboard for the newspaper, the operator accepted the call, then transferred the reporter to sports. The kicker was the operator had a book where they wrote down the phone numbers of the collect calls, so they could match up charges to calls. Turns out the guy went about halfway, a decent drive in itself, got a hotel room and covered the race from TV. He wasn't around much after that and it's been so long ago I don't remember any discipline.
When we had a PM competitor to our AM, the PM decided to expand out in its high school football coverage one fall. There was a fringe team that was a state power and this one reporter for the PM always covered that team. Turns out, we found out after he left, that he never went to a game. He arranged with the coach to call him early Saturday morning, get the info on the game and put a story together with the coach's quote. He did put in for expenses, though.