Good thing that happened to you in the UK!  If you even just mention the "B" word at a U.S. airport, missing your flight will be the least of your concerns!

Being a tournament dart player I've heard a lot of stories because, for some absolutely unknown reason, darts are banned from being in carry-on luggage (and, I believe, are considered a deadly weapon even though I've never even heard of a serious injury in over 30 years of playing).  Unfortunately, some of the touring players have made the comment "What's the big deal?  It's not like I've got a bomb."  and have been whisked away, in one case for two days(!), where they had a lot of stupid questions to answer...