I've got a couple of K-Line passenger cars that, when I pick them up, the trucks turn sideways. It's not a big deal, but I'm sure there's an easy solution to keep the trucks pointing in line with the car. They can't turn 360 degrees and whenever I pick one up the trucks never fail to flop to the side.
I'm sure some of you think "I wish that was the only problem we had in O scale", but it's like that piece of pine straw that's always under the windshield wiper where you say "When I get out I'm gonna get that" only to forget about it by the time you stop.