Collectors report that the problem occurs especially when driving, through repeated movement, fastening the seat belt and getting out. It has proven helpful to carry the pen by clip exclusively in the narrow, shorter left inside pocket of the jacket, not in the wallet pocket. With plug-on cap constructions, the risk is basically higher; models like the Bohème or a Pilot Capless are safer here. Bent clips can in many cases be bent back without disassembly.