Snakes are not rabbits or Cat's. I know but nevertheless one should build a certain basis of trust. The owner is obliged to clean the terrarium and feed the snake. You have to be able to touch the snake and dare to do so. You have to go to TA and you should have already taken trust. I read once that you must not press snakes in any way it is also important that they are never grasped from the front towards the head. Is it appropriate if one queues the one new gets accustomed to the smell of the owner with a clothes piece for example?