"There," said Grandmother, clearing her throat and folding up the paper. "I hope you understand now what a tip is."
"It seems to be one tenth of all you've got," observed Matilda, staring out of the window, "like those religious sects that believes in givin' a tenth of everything to the church."
"Travellin' must be terribly exciting," remarked Grandmother, pensively.
"So 'tis," Matilda agreed after a pause. "I reckon it's better to stay at home."