Wait, WHAT?
CurryCid18, I just had a similar occurrence today and thought you might want to hear my opinion on this. I had a religion exam today, which is a pretty big deal, it's very strict on rules and stuff. When I was done with the test there was 20 or so minutes to spare and I whispered to a mate behind and the teacher saw and reported me. I was pretty anxious and nervous for the entire day, in anticipation of what was going to happen. But at the end of the day me and the few others that 'cheated' got called to the year 8 coordinator and pretty much just got a warning.
I know that the MHS exam is completely different to this, way stricter and important. But I think from these experiences we can learn to just take it easy, there is no point worrying about something you can't change. At the end, whether or not you get penalized/ let off just learn from your mistakes.