This thread began on a negative tone, it might as well end on a negative tone.
Jan, I agree with Stephen that you are the primary source of negativity. This thread was started by shade stating simply that perception is often flawed, and he cited solid evidence to back it up. If you read again the posts in order you will see we are all calmly discussing the issue of perception, and you are the one who became increasing riled up and argumentative. I honestly don't know what any of us can do to keep these discussions civil when you seem so intent on being confrontational. I think someone needs a time-out!