He reddened. “You know, to, um, change the, um…”
“Your what?” she asked, staring pleasantly up at him.
He stared dumbly at her. Finally he realized she wanted him to say it.
“The, um…diaper.”
“Change your diaper? No, sorry. We ran out of time. You took too long. We’ll have to take care of it later if we have a break.” She turned her back to him again.
He couldn’t quite believe she had said that. She couldn’t be serious. He started to panic a little. “I really need some help here. Did I do something to upset you?”