We all thought Bernie Ecclestone's sprinkler system suggestion of six years ago wasn't a feasible idea, but the Singapore Grand Prix showed just what a little rain shower can do to spice up a Formula 1 race.
It also proved the wisdom of the old saying that you can't win a race at the first corner, but you can certainly lose it. Ferrari took that to an extreme, losing it even before the first corner.
I know overtaking is nigh-on impossible with the current breed of F1 car around a circuit like Marina Bay and that in wet conditions the safest place to be is up front, but sometimes you need to prioritise survival in order to challenge later in the day.