done no1, not with condoms but i done it with KY to a old couple once, and i dont think they even noticed when the woman scanned it though but she gave them a funny look as they must of been in there 80's
another thing i tried once, was i asked this matey what these choco bars were like to which he said hes never had the,, so i cracked it open, and ate 1, then i asked for a discount as the pack was open

he was trying to be as polite as possable but basicly asking if i was some sort of c*nt
try filming stuff on ya mobile as you go past the security gaurd, if there anything like the twats over here they get heated and tell ya to stop filming, more so when you start to film them