Restaurant screwed up... the food was very good though

Yesterday we dined with our friends in an interesting restaurant in Palo Alto. It is a Jewish one, I have never been to Jewish restaurants before and was curious. This is the place: http://orenshummus.com/. The restaurant was full, we had to wait around half an hour. Finally we were seated and had a great dinner including obviously hummus. When we finished we had to wait for the bill, which is actually very uncommon here. Normally the bill is being brought right away, sometimes even when you didn't finish eating. We were stunned by it at the beginning and haven't yet got used to it even after almost a year here. So, this place was an exception, we had to catch the waiter and ask for the bill. Finally he brought the folder, we opened it and.... found the other person's credit card there!!!! They brought us someone else's bill with someone else's credit card in it!!!!

But the food was really good, so we might go there again if we find time in our tight schedule:))))