Singer

Rufus needed equipment and cleaning products. He already had a suitcase, but Faith was not as slight as Roger, so he might need to 'trim' her and take two journeys to deposit her somewhere secure.

His problem was that without a car he couldn't get to a disused mine and couldn't get there twice. He could start the process though with a bit of butchery after rigor mortis.... but he mustn't make a noise.

Singing loudly in his shower maybe surprised his neighbours.

But, always plugged in to Mac, Rufus obviously liked music...

He liked to sing while he worked.