I thought the words. I can be seen mouthing the words. I said the words under my breath, more to myself than anyone else, maybe in the expectation that those sitting either side of me would hear. I didn’t expect the person would hear my comment.They did and they were angry. I can expect a reprimand. You just don’t say that type of thing whatever your thoughts on their behaviour and intelligence. There was a complaint so of course I had to apologise. No doubt they won’t forget but I’m not sure most of those present didn’t agree with me.