Mister Pleasant Puns

My family and I were touring a zoo/safari park, and looking for the elevator that would take us down to another area of the park. We were walking near an older couple, and the woman pointed out to her husband that the elevator was just ahead past the mister (there were various places throughout the zoo where a pleasant mist of water helped keep visitors cool). The man responded, without missing a beat, "That's Mister Elevator to you."