The crown goes to London Stansted's security, I got asked last sunday at stansted security to take off 2 hair bands (fabric like elastic with no metal content) off from my wrist explaining that they set off the xray scanner!
Just goes to show how stupid that scanning machine is if not bordering on pathetic!
Good job I am not a nursing mother any more else I would not recall which eh hem was last used to ehhem-feed my little boy!