Back in the day I used to race go-karts and to somewhat solve fuel cheating they made us do what's called pump around where everyone had to line up when you were going out for a heat or a main race and they sucked all the fuel out of you tank and it all got mixed up with everyone else's and then pumped back in it was kinda crazy but it did make sure everyone had the same fuel but there were those that somehow took a condom and put nitromethane in it and somehow put it in the tank where it didn't get sucked up or either put it in their pocket and dropped it in the tank after pump around and it would bust and man you could tell the difference after it burst because their head pipe would glow red and the motor had a whole different sound to it. Many got caught because the top 3 got torn down in tech and fuel checked if there was any left lol

