Another infamous candidate is the old dawg 13009/10.
Here’s a fun anecdote, few months back I went on a trip up north with a couple of college friends. While returning back, we took the 13010 from rishikesh overnight upto Lko. We Deboarded at lko around 10:30 the next morning, went to our hostel, took a rest and packed up our stuff to board 20402 back home to bsb the same day. We arrived at bsb around 22:40 and imagine my surprise watching the same 13010 that we had left at lko in the morning standing just next to us. It had arrived at bsb just a few mins back as well. Was a fun trip!