Senior humor

Rico says his friend Tex, himself an old fart like Rico, sends this:

Two young businessmen in Florida were sitting down for a break in their soon-to-be new store in the shopping mall. As yet, the store wasn't ready, with only a few shelves and display racks set up. One said to the other: "I'll bet that, any minute now, some senior is going to walk by, put his face to the window, and ask what we're selling."
Sure enough, just a moment later, a curious gentleman walked up to the window, looked around intensely, rapped on the glass, then in a loud voice asked: "What are you selling here?"
One of the men replied sarcastically, "We're selling assholes."
Without skipping a beat, the old timer said: "You must be doing well. Only two left."

Seniors didn't get old by being stupid...