I have Hayes HFX-9's on my bike. The other day I had a little fall on my bike. I kinda just fell over and the left side of the handlebar and left brake lever hit the ground. I gave the bike a quick once over to see if anything was wrong but I did'nt see any damage. The next day I hop on my bike go to hit the front brake and there is nothing there, the lever just went the whole way to the hand grip. I guess either there is a leak in the system or air somehow got into the brake system. Has this happened to anybody else? Could a leak have occured by hitting the brake lever off the ground?