I got put in the bad persons line because I left my kindle in bag, never had problem with that before in Glasgow, Cardiff or Bristol airports and fly though them at least once or twice a month. While in the line started to take shoes off as I know they set scanner off, but was told not to take them off unless asked, then as I was about to go through another person told me to take shoes off and go back and put through the x ray machine thing.
And yes think my hangover was not helping :-)