I have to agree with you, part of being a martial artist for me is being humble. Buying your belt before your test just assumes too much and if I figured out a student did that I don't think that I would pass them. I agree with you both, its not something i would contemplate. Its not just about incuring the wrath of the Karate Gods (!), as another poster says, but there are too many variables with it, and with life in general also. Accidents, illnesses, long-term unemployment etcetc. These things and more may neccessitate taking a break, or long breaks, away from Training, some things may neccessitate having to give it all up for good! I'm not saying don't, just saying its not something i would do. But whatever floats yer boat, floats yer boat!!