"Don't thank me, just owe me one," the Master said. He didn't know why he need it or when it'd come in handy but it was always wise to keep someone on his side in some manner. With a slight nod, the Master moved away from the Doctor and pulled the door open, just happy to get some fresh air.

Being around the Doctor could be such a headache sometimes. He never know how to feel and that never boded well with him.

Frankly a swift exit benefited him.