I always carry a knife. Even when in court clothes. When riding I carry an Applegate/Fairbairn folding dagger and a concealedofficer's model Colt .45. or a Kimber Pro Carry .45. But then I I am able to do this legally. When I fly for work, I fly armed, so they dont worry about my knife. Once shortly after 9/11, I was flying armed to pick up a prisoner, but the new TSA rep had me give up my fingernail clippers because they were on the banned list at the time. I wasnt sure how the gun was going to do less damage than the clippers, but it wasnt worth the argument.
Rick