follow all the things Frog just said
Lots of breeders will ship with a " will arrive live and healthy at your door guarantee" but at shows you take it home with you....
Now you do want to get contact info so if there is anything wrong with the sanke you can call and talk to them about it BUT if something was caused by you then the guarantee is void.
when you get the snake LOOK IT OVER. listen to it breath. look for kinks.
its like picking out a piece of fruit at the market. they throw in CH animals some times so you want to weed through the bad ones ( dont flame me you know what i mean) and find that one thats perfect for you