I bought a Carter's ringtop about a month ago and I've been wearing it to the office. This morning, as I was walking to my office, the pen literally fell apart: the barrel broke at the threads and a large chip fell out of the cap - all at once. I can only assume that the plastic came very suddenly to the end of its natural span, but I really like the nib. Has anyone had this happen? I imagine that people dealing with early polymers encounter this sort of thing fairly often. I don't really think it's repairable, so I may try to find a modern pen to fit the nib. Any suggestions?