It’s all about the whistle!

I had to screenshot the video as it was all I took. The traffic police love their whistles. I wonder if there’s an actual system or they blow how they please. Video taken on a walk to Kolonaki. Roast pork and half a litre of red for dinner. At 2 euro a glass and 5 euro a glass...
The students have finished their tests. Marking starts now. And I relaxed tonight.