[jonathanbull]

I've done this loads of times. Albeit in the UK and Canada, where the card reader is brought to your table.

[jvzr]

Just to add that, at least here in France, it is not at all uncommon to stand up and go pay at the terminal on the way out, instead of waiting at the table. They usually have a card reader anyway, but it's a matter of convenience for the restaurant I think.

(Tbf I'm talking about everyday restaurant, not gastronomic experiences)