Thankfully it is a very rare event on the track. It's usually a very civilised sport.
You might see a few more incidents in future as sprinters are starting to find ways of exploiting the new false start rule which leads to an instant DQ. Some athletes are starting to find ways of getting the others to go early, e.g twitch without the starter seeing it and set off the adjacent athlete. Others come up slowly and try to get a rolling start. Usually they vent their anger at the officials but it is usually one of their fellow competitiors who set them off.
In almost exactly one year's time we are bound to see quite a few DQs as they will be in front of 80,000 crowds who are not usually at athletics meeting and won't know when to keep quiet. BUt I may be wrong.