Perhaps you should just storm Stanley depot to kill 3814?

I mean, it isn't exactly going to be hard, it's basically a long garage filled with buses. Make sure 3813 is out in service and 3814 is in the depot. From my experience of looking through into Stanley depot, the Olympians tend to be at the back (any particular reason why?, I would have thought maybe if they come in from schools and aren't needed to be 'stacked' to go out early the next morning for mainstream service they may just be put at the back?) so just walk up the length of the depot and set 3814 on fire.

Any other ones you hate in there too, burn them in the compound. Ooh, and if you see any B10BLEs, please spare them.

They'll never take you alive.