I left my bike in the overflow bike park and was gone for around an hour didn't notice anything amiss on my return but next day I unexpectedly ran short of fuel and had to fill up sooner than expected.
I had ridden around 70 miles and noticed the fuel light on again strange
It was only then I noticed a drizzle of fuel coming from the near side frame before I could stop safely it turned into a gush and fuel was all but gone again. On inspection I found the fuel line detached at the fuel line quick connector.
Now this was the first time in 6 long years I had this problem the line has not been broken in 20k miles so I have concluded that some bastard either knicked fuel or interfered with it at box hill as this was the only place the bike has been left untended in a long time.