One of my friends seems to be having a hard time with checkrides. He busted his private once, and in the past few weeks, busted his commerical Multi 3 times. He has asked me if there is any hope for his future in aviation. I myself have never busted a checkride, and don't have enough experience in the area to give him a solid answer. I told him to keep his head up and further down the road, if they don't ask, don't tell. I know that 1 or 2 busted checkrides is pretty easily looked over. but 4, I'm not so sure. I don't know. I feel for the guy, but think he is skating on thin ice. Any good advice that I can pass on?