The satisfaction a developer get when you see something hacked publicly.

Those living in Sydney know there's an app called Opal you can use to navigate public transport.

Part of this is app is a trip planner which can suggest the fastest route to your destination, and is aware of train and bus movements in real-time (supposedly)

Me: Fastest route from station T to station C
App: In 5 minutes, walk 12 minutes to station M and board train. You will arrive at your destination by 20:12

5 minutes later...
Me: Fastest route from station T to station C
App: In 1 minutes, board train. It is the same train that will arrive at station M in 12 minutes. You will arrive at your destination by 20:12

Am I going mad, or does they algorithm stink?