Along with a healthy median salary and a job growth outlook of 38% by 2020, the job is low stress, because most hygienists have a fair amount of autonomy, are in charge of their own schedule and leave work behind when they exit the office at the end of the day.

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The four have combined for five pay-per-view matches since last year's WrestleMania, the kind of work-rate wrestlers on a punishing 200-day-a-year schedule could appreciate more than any five-star match.

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The reasoning behind the choice of both location and schedule is to accommodate the working needs of the participants, who often work an average of nine hours per day and reside at the construction sites.

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