Yesterday going home from work cruising on my pace (pretty slow) and pass a hybrid that was going really slow.
After a while, traffic light with some bikes already there, so I stop a little back. The hybrid comes and goes all the way forward.
Traffic light opens and hybrid that kept probably high gear is very slow to get started. After crossing I pass again and yup, down hill like half mile.

Down there, there is another traffic light and some folks already waiting. Hybrid goes all the way to front again.
I stay behind him to cross and after some 300ft our paths split, so got home happy