When you're replacing/rebuilding these fuel hoses, be sure to take a look at the return line in the engine bay/chassis that has a rubber flex section on it. That one has the same potential as the rest of them for leaking at the crimp joints.
I just found mine ready to leak 3 weeks ago.
https://www.youtube.com/watch?v=b5AEbQy4HOQ
I believe fahck is German for "darn it?"