Two older couples had just had lunch together, and the two men were chatting while the wives were in the kitchen.
"We went to a really nice restaurant the other day, but I can't remember what it was called" said one. "Mmm, what do you call that pretty flower which grows on a bush with thorns?"
"Rose?" said the other.
"Yes, that's right" said the first man, now quite pleased. "Rose, what was the name of that restaurant we went to?"
