IF sex has always happened in workplaces, that really doesn't make it ok. In the staff room?! Where staff go to relax while they're on a break? 'Oh excuse me, can I just squeeze past you two humping to get to the coffee machine? Oh sorry I've just scalded your dick with my hot chocolate.' Yeah, sounds totally ok. And to be fair, even this daft, boundary-less, porn-addled, narcissistic pair don't seem to have been at it in the staff room, reports suggest it was a changing room, which hopefully then was at least locked but who knows? Regardless, totally inappropriate. You're at work to work.