Didn't some 5 year-old expat kid fall asleep and get left on a school bus a few years ago and they found him in the back of the bus in Tuas after the driver had finished his shift? Apparently the Auntie had got off near her home before all the kids finished being dropped off.
How's that for getting your money's worth.
Only one minor incident in a few years? Money well spent, I'd say!