More than I can remember but I know that I have fallen off the B point on shores of time at least 3 or 4 times. The other day I was using the shadowshot during the omnigul strike and the momentum from using all 3 quiver shots was enough to push me over the edge where the giant satellite comes out during the cosmodrome mission. Also can't tell you how many times I have lacked awareness and run straight into a wall trying to escape another player in pvp. Oh well, stuff happens.