For all those who wonder, here is one example. I was in a blues bar in Memphis. Not particularly well lit, but the there was an abundance of red light. This shot looks so bad, I almost delted it. Red channel is entirely blown out in the jpg:
But I gave it a minute's love in Aperture:
It's somewhat underexposed now, and it needs more work. but still, I managed to get the colours pretty close to what they should be without destroying the image.