Sleeping on the job

The other construction workers had warned Harry repeated how dangerous sleeping on the job was--he could fall off or injure himself in some other way. This time they were going to teach him a lesson. One of the others workers was a specialist in the black arts and cast a spell on him, transforming his body into that of a woman. When he woke up, he'd learn the biggest danger of sleeping on the job, the pranks of your co-workers.