If you’re going to work from home and tell people that you’re working all day, make sure that the work you’re doing doesn’t get timestamped.
To be fair, he started collecting data at 12:42 and didn’t stop until 5:49, but that’s still only a five-hour work day. I’ll give him the benefit of the doubt and add half an hour on either end for transportation (which he shouldn’t be getting since he’s going directly from the house to the job site). That’s still two hours being billed that he’s not working.
I’m glad that I’m neither his supervisor nor the one who caught this.