Here's how I changed it to add a little twist.

The store owner of a dollar shop asks the sign painter and his helper to paint "This And That" above his store. Later, he sees the painter has painted "ThisAndThat". "No, no!" he says. "There's a space between "This" and "And" and "And" and "That!".

The painter's helper looks up at the sign, points and asks "Is that that "That" that that guy was talking about?".