Really not sure what do make of that Dave. I can't think of an example of hand but one of my own failings is that I'm quite capable of seeing one bit eg. in a paper, on one line and another elsewhere and look for the intriguing story. Things can also happen to me these days with hearing if (as is mum's habbit) someone tries to "shout" to me from another room - I'm not saying this has been one but over distance like that, things can come out as puzzling as "the cat's inside the television".