Life is cruel at times. So cruel, that we are not even aware of that. Our own jealousy blinds us to the extent, that we are not even aware of what is happening around us. That lead to us being clicked by random people at random intervals, much to our embarrassment and growing horror.
While it is quite impossible to curtail our jealous bone, one should at least try not to show it whilst in a crowd, for their own dignity. As it stands, there are only so many ways you can turn your face to avoid being snapped. What happens when you are caught unawares?