"I've dabbled..." Not really but, "You know the gasket that goes round the inside of a side loading machine, the one that is almost impossible to clean? That was my idea."

Spreading a little laundry discord! Surely that wouldn't become a problem for him later on though.

"Do you," He paused perhaps about to reconsider the coming offer, after all he had been unnaturally good today and it was beginning to itch. "Want me to wash yours after my load is done?"