well said. just before you realised what was wrong with your cyclekart I was driving it and the brakes were working tremendously (even if they weren't actually attached by anything
).
I agree with the track buddy. This means your kart gets looked over for a second time but with a new set of eyes which could spot mistakes better.
A simple diagram of a cyclekart which has a coloured dot or cross wherever a bolt is would be a good idea so that none get missed out.