i saw the first operation video. the brain surgery video. I am with medical line and have seen countless surgery in OT. he is using hardware shop hammer for god sakes.OT hammer is full stainless steel..the clothes that cover other area is loose and blocking the doctor view n movement. this will never happen. then he operate in dark, the light didn't even light the area he operate properly.. i don't even have interest to look at his other video..