nipped off

Perhaps vital business-catalysing fluids seep from unclothed shins and calves. Perhaps shed leg-hairs make their way into photocopiers and fax machines, impairing them. Maybe it's a problem with the clothing item-type itself rather than what it reveals, seeing as female employees knee-revealing garments are apparently still permitted; perhaps shorts in a workplace confuse Business Captains, in whose minds such garments are strictly defined as sportswear, leading to confusion and unauthorised state changes to non-business modes in their operating systems.