On the flip side of the coin, some 30 years ago I received an invoice at work for £10k from PLM for a helicopter flight from (I think) Sumburgh to Inverness. A couple of our chaps had missed their Dan-Air 748 flight after a late running ferry trip back from Unst, so rather than rebook the flight for the following day and find a hotel, the senior engineer simply chartered a Squirrel. We paid it but I gather there was a rather interesting interview held with the culprit. Good job there wasn't a Bizjet outfit on the airfield, they'd have likely slummed it back to Gatters on a Learjet...