Sorry, but you've got that totally wrong. I offered the sandwich to the security man two or three times. The LAST thing I wanted was for it to go to waste, because I'd made it with such care and wrapped it in clingfilm so he could see it wasn't a bomb, but he just tossed it in the bin. I couldn't eat it myself, because I'd just had a portion of chips from that excellent chippie outside Northumberland Park Station (only £1.80 - and top quality, with all the salt & vineagar you want).
Edit - I must emphasise that the security man and I parted on very good terms - the bastard.