Oh No...

Laundry lesson 001...if you find a bright red oil rag in a customers pocket, don't toss it in the machine and press the warm wash cycle...if you do, you too will find pretty pink socks that the big burly man who's wash you're doing is probably not going to be so keen on :/
And it wouldn't come out! I re-washed with a color-catcher, then I re-washed with bleach, then I soaked in oxi white for 3 hours and washed with more oxi white...still pink!!
So I ran to the store and bought a nice new pack of bright white men's socks...hopefully Mr C won't be too upset.