In supermarket cafe just now. Sat 3 tables away from 4 year old who was playing the most irritating game at full blast. The mum and a friend were sat at the same table nattering. This went on for the 15 minutes I was sat there. I then went and did my shopping and could here the racket a couple of aisles away.
Very tempted to say sth but walked away instead. Has happened before and have said sth which was well received.