The third one is the only one I wish was in focus/not blurry - I love how the dog on the left is the only one looking directly at you. The first two, I think, work well as they are - the actual photographic event is almost an afterthought, and so we feel a bit like a voyeur having access to a quick moment in time. It helps that they are rather trivial moments, as well - but there are details that make it real and interesting: the boy running on the right, the child wearing the helmet, and the realization that you're looking at the scene of a minor accident.. I quite like a lot of blurry photographs though, so don't take it just from me - I think I'm in the minority.