Unfortunate Pooling

I was in a lecture yesterday and the woman speaking had on this beutiful knit sweater coat thingy. It came down to her knees. It was lovely except for one part (and I found myself distracted by it and wishing I had my cell phone to sneak a picture). It was done in a blue and brown variagted yarn and basicly made blue and brown striped throughout the garment . . . but, on the butt, it pooled in such a way that it looked like huge brown and blue verticle stripes. It was just on the butt. What was the maker thinking? It kind of look liked this: Not my best drawing, but you get the idea.