Our cat Timmy was hit by the bumper of a taxi. The taxi was probably going too fast. Anyway, as the taxi approached Timmy ran across the road in panic. The taxi driver didn't see him until the last minute and tried to brake. My fiance says he went up in the air and fell funny but he got up and ran up the step and through the bars of the front gate. He ran up another two steps and around the corner of the house to the side of the house where my fiance found him collapsed. When my partner saw him fall funny she said his back was arched in a funny way and that she thought he'd broken his back. But I don't think he could've run if that was the case. As he was such a gentle cat (he was only 2 years old and such a baby), I think the sheer violence of it all sent him into shock and he had a heart attack as a result. But could the impact of the car's bumper have knocked his heart out of rhythm and eventually his heart gave way? When my fiance found him his heart was fluttering she says.