To the OP, I currently have 30 snakes of the holdback or adult variety. I hatch an additional few dozen a year. I have ball pythons, corn snakes, Kenyan sand boas and western Hognoses. I have been keeping reptiles for 8 years. So not a huge collection and I have not been doing this for a terribly long time. However, I can say with confidence that among my collection the color of the animal and its attitude have exactly 0 correlation.