Okay, I know this is completely sad, but next time you see the advert for the new Cillit Bang spray. The first shot is for an obviously test bottle design (the one you see in the shops doesn't have the four squares on).
In the bottom square of this sample bottle, it extols the virtue of cleaning: 'stainless steal' sinks. ROFL
Yes I know, I need to get out more, but FFS is this detergent designed to remove the tarnish from metal burglars?