A dangerous weekend on the water. A Sarasota man critically injured late yesterday afternoon in a jet ski accident. 26-year-old Carlos Dominquez apparently turned too close to an oncoming boat and was struck by it. The accident happened in Big Pass between Lido Key and Siesta Key. Dominguez flown to Tampa for treatment and in critical condition. Earlier, a boater seriously injured when he fell off teh bow of a pontoon boat when it struck a sand bar in Dona (DONNA) Bay. The boy was then struck by the boat’s propeller. He’s hospitalized with serious leg injuries.