"Ok, so it seems like you are getting used to this, I'm impressed" the witch told the toad that was Christina "You're now learning how to feed yourself. But that isn't the only survival skill you will need. I'd better get you used to some of the other hazards you'd face in the most gentle way possible. Now, let's see.."
The witch noticed a couple of ageing and out of shape male joggers approaching along the same path the two young female joggers had taken not long before "Hmm, they should be no match for you!" the witch decided. She waved her hand and the two men became two hungry, if rather disorientated and unhealthy looking snakes.
"I'd hop off if I were you" the witch suggested to Christina "They have no idea you used to be human and I've given them quite an appetite. Still, they are both fairly slow and helpless so I'm sure you'll be fine. Just look at this as a training exercise."
To the witches amusement Christina ribbited in an animated fashion before starting to make her escape from the hungry snakes.