Hi, first off I just want to say what a great forum this is... I have learned a lot reading about ball pythons here.
Anyway I have a problem, on the 7th of november I got my first snake (a ball python), it was bought from a pet store and is pretty skinny. When I got him I had a plastic tub all set up, I have a uth hooked up to a pulse proportional thermostat and the temps are 92 hot side and 78 cool side, the humidity is 50-60% and I have newspapers on the bottom. There are hides on boths sides and I wrinkled up some newspaper balls to give him more sence of security.
I left it alone for the first week (with one exeption one day because of nosy relatives). So on the 14th I tried to feed him, I thawed a mouse and put the snake in a seperate container, I wiggled the mouse in front of him, but he looked kinda scared so I just layed it down on the bottom turned off the light and left the room. An hour later he had not eaten the mouse so I put it in the freezer.
Now I left the snake completely be for full 8 days (just changing his water) and tried feeding again. Now I wiggled the mouse a little bit in front of him in his tub, but he looked scared and went into one of the corners, so I just put the mouse on the bottom and let him be over night, when I woke up he had not touched the mouse and was still in the corner. I took the mouse and threw it in the garbage.
So now I am worried, what is the next step I take? Do I wait a full week again before trying to feed or what? He is skinny so I want to get some food in his belly as soon as possible. He has not pooed or peed since I got him, I am worried he might be dehydrated because his skin wrinkles around his neck area, should I soak him?

Any advice would be greatly appreciated.
Thanks