The Master caught the package with both hands... and shot The Doctor a look that could've set a lesser being alight. (Smart thinking, not turning the hob on.)

"...No thank you."

He gingerly set it aside as if it were something poisonous and picked up a sandwich instead. He tore at it ravenously, barely taking the time to chew.

"This hunger," he said between bites. "It's seized me, ever since I came back. Anything I can get my hands on."

He had hardly finished the first one before he started making another. He certainly didn't look like he had put on any weight.