Window cleaning is probably not the most fun of professions. However, add in the requirement to share your job with a bunch sharks (and not the loan variety) while simultaneously being watched by a crowd of people, all of whom are no doubt secretly hoping at least one of the sharks is feeling a little peckish; and suddenly the interest levels notch up a level or two.
However, if you don’t fancy risking the odd limb, but still want to work with fish perhaps a career as a fishmonger would be a better choice.