Why dogs are not helpful to blippers 2

So number 1 is that dogs frighten off all wildlife from stalking blippers. Today, having taken lots of wave photos, finally the perfect wave appears and just as I take the shots Ginger bounds up and gets her arsetail in the picture. I have cropped most of her out but it looked better with a bit of beach in the bottom left corner, just without a huge fluffy dog in the middle! Note remains of dog behind in bottom right hand corner