I have an H&K USP45c that broke it's trigger linkage while a first time shooter was using it at the range. Result was a dead trigger that would move forward and backwards, but not drop the hammer. Poor kid thought she broke my gun. I explained to her that it had tens of thousands of rounds through and that any weapon no matter how good will break from use eventually.
H&K fixed it for free with no hassle. Thumbd up to their customer service and repair divisions.
TFL survivor, THR member, TFL member once again!