Unfortunately I have seen this happen to far too many people (me being one of them). I should clarify. I did not see it happen to me. I felt it happen to me. In my case, thankfully, it just hurt quite a bit. I have seen one unfortunate individual receive a rather serious cut on their forehead and needed about a dozen stitches.
Although this makes for a fairly entertaining comic it can be dangerous not paying attention to your fellow disc golfers. Whether you are driving, walking, putting, or somewhere in between please be aware of and responsible with your fellow disc golfers.