Pals on the Sidewalks

Had a mild stumble today stepping over the bike racks by the Library, and a nice old guy caught me. "Are you OK?" he said?  "Remember me?  You talked to me two days ago.  How's it going?" It was kind of funny, actually.  The first time I passed him and his cup two days ago, I said, "All I have is 15 cents, sir...hang on."  I went into CVS and bought some nostrum, and my change was $1.01."  When I went back out, I told him "I got another penny!  It's 16 cents now." (I gave him the dollar, too.) And he smiled and laughed.  "Thank you, ma'am."