A few years back I worked for a company who had a UK branch. The boss at the UK office was generally nice enough, but very strict about what was allowed at the office. We managed all IT from the Danish office, and would notice that a certain hours in-bound traffic would increase a lot.

When we look into why we figured out that it was a few guys, working insane hours, who where streaming Champions League while working. Technically not allowed at the UK office, but the decision from the Danish IT Manager: "Fuck it! If they're still at work they should at least be allowed to watch a game".