Years ago, I worked as a B&W printer in a Lab over in White Plains. One day the guy that processes the B&W film came into the printing room with a roll that was about as reticulated as any that I've ever seen. It was was first thing in the AM and in his pre-coffee condition, apparently didn't notice that his wash water was coming in at 150 degrees F. The effect was quite interesting,although not exactly what he client was going for. We gave him back his roll along with an admonishment not to leave his camera in his glove compartment on a sunny Summer day