Jeff Caldwell returned for another stand-up performance on last Friday’s episode of Late Show with David Letterman.

This time around, Caldwell describes what it’s like as a comedian married to an artist when the comedian is considered the main breadwinner, living in New Jersey, the use of reservoir water and how kids these days prefer energy drinks instead, the difference between two adjacent keys on your cell phone, and more fun with new technology.

Roll the clip.