From the photo of the laptop it looks rather swish for the 'best value for money' or the 'cheapest money can buy' laptop.
Bit like the 777 crash I be we can come up with some good theories and rumours.
I would almost hazard a guess that:
1. It was a private laptop because the security clamp down impinged on his ability to do work.
2. He could have used a company laptop but this would have meant collecting and returning it perhaps out of hours.
3. He took it into the pub to stop it being nicked from his car, assuming he was not on public transport.
Simply the whole laptop issue is fraught.