This is a PSA about that...Keep in mind that the baggage system is just a series of belts...and things that dangle off...including locks, can EASILY get stuck in that system, causing minor damage to the belting system, and usually MAJOR damage to the luggage. Please be careful when putting anything dangly on luggage for this VERY reason. When it gets stuck, the people that unstuck are not gentle by ANY means and there is usually loss involved.
Just a warning.