Mind wandered ...
While thinking about this remembered getting DV’ed the last time I called out the guy who holds up a long queue of the caffeine-desperate at rush hour by using a card - the kind requiring a VOUCHER to be PRINTED and then he has to find a space on a busy counter to sign the thing. Bastard! All for a 2 or 3 dollar/quid cup of coffee. Was he claiming it on Expenses?
Point of the comment is time was - the time of pen and paper - you could ask the restaurant to write a receipt for a lot more than the actual bill. Now that is how to charge expenses. Course none of us ever did that?