"Didn't you see the messages?"
At T4 a few months ago, one of them asked me this.
I pointed out the message 3 feet away, telling me to do what I had done, which he took exception to.
Quick as a flash, he replied that it was intended for the next queue.
When I pointed out that it was blank on the other side and the text was pointing at my queue, he started to get huffy and talk about 'being difficult.'
Thick as two short planks, some of these people.