"Bad memory" joke

One elderly couple is visiting another for supper. The two women go into the kitchen for a moment, leaving the men to talk.

One of the men says to the other, "The Mrs. and I went to the nicest restaurant last night."

"Is that right?" the other inquires, "What was it called?"

"That''s just it," he replies "I can''t recall. "Say, what''s the name of that red flower that has thorns all over it?"

"A rose?" he responds.

"YEAH, THAT''S IT!" he says energetically.

He then whirls around and yells into the kitchen, "Hey, Rose! What was the name of that restaurant we went to last night!?"