I often show a video short at the top of my lessons, something that the kids will like; something to interest and fascinate and get the juices going. I do it because they will know I do this and if they miss it they miss out. If they arrive late I often leave them outside. I think It encourages punctuality. I had a 'Learning Walker' observer turn up who said it had nothing to do with my lesson. In fact it was to do with a previous discussion in the lesson which I mentioned. They said keep any icebreakers on topic. Do we agree?