Well, I was on my way on bus to orchard when I notice from my window seat that the cab driver is very inconsiderate... He stopped just centermetres behind the lorry... and when the lorry move forward, it closed up the gap to the same distance that it stop before the lorry in the first place.
This picture show the gap when the lorry moved forward a bit... The initate gap is just 3~6 centermetres away....

