Few years back tried to bring a bb gun back (declared and with a permit)... Was a full replica for target shooting. Cleared the whole end of the customs area worse than any bomb or tv show drama. Guy was clearing the slide and waving it around with about 10 officials overlooking... Gasps and oos and aas from the other punters. I finally realized the worst backlog is due to our strict conditions and idiot pax attempting to bring in stupid things and the ensuing arguments etc... Including me on that day.