Janitors do it on the floor with wax and clean up afterwards. Kayakers roll over and do it again. Lawyers do it in their briefs. Librarians do it by the book. Mechanics jack it up then use their dipsticks to check your lubrication.
Photographers do it in the dark with a flash.
Policemen Do it with 15 shots and one in the chamber. Printers Do it without wrinkling the sheets. Racquetballers whack it against the wall. 7-11 employees do it 24 hours a day. Square Dancers do it in groups of 8.