An ancient couple were at their friends' house and were chatting away. The old boy said,   “Last night we went out to a fantastic restaurant we've never been to before."

His friend asked what the name of the restaurant was.

"Oh blimey, what was it now...". After a moment's thought he said, "What's the name of that flower you give on Valentines Day, you know, the red one with thorns...?"

“Do you mean a rose?”

“Ah, yes, that's it!"   He turned to his wife and said, “Rose, what's the name of that restaurant we went to last night?”