Two old men on a park bench

Two old men were sitting on a park bench visiting. Their wives were
sitting on the adjacent bench.

The first old man said, "I sure am having trouble with my memory these
days. Seems like I can't remember anything anymore."

2nd man: "I used to have that problem until I started taking those
little green pills."

1st man: "Little green pills. What are they?"

2nd man: "I can't think of the name. Let me see. I need the name of
a sweet smelling flower that comes from a thorny bush."

1st man: "Rose?"

2nd man: "Yes, Rose, that's it." (calling to his wife): "Rose, what is
the name of those little green pills?"