This class of story is not always confined to the case of the plentyn-newid, as I have said. It is applied to the household fairy, when the latter, as in the following instance, appears to have brought a number of extremely noisy friends and acquaintances to share his shelter. Dewi Dal was a farmer, whose house was over-run with fairies, so that he could not sleep of nights for the noise they made. Dewi consulted a wise man of Taiar, who entrusted Dewi's wife to do certain things, which she did carefully, as follows: 'It was the commencement of oat harvest, when Cae Mawr, or the big field, which it took fifteen men to mow in a day, was ripe for the harvesters. "I will prepare food for the fifteen men who are going to mow Cae Mawr to-morrow," said Eurwallt, the wife, aloud. "Yes, do," replied Dewi, also aloud, so that the fairies might hear, "and see that the food is substantial and sufficient for the hard work before them." Said Eurwallt, "The fifteen men shall have no reason to complain upon that score. They shall be fed according to our means." Then when evening was come Eurwallt prepared food for the harvesters' sustenance upon the following day. Having procured a sparrow, she trussed it like a fowl, and roasted it by the kitchen fire. She then placed some salt in a nut-shell, and set the sparrow and the salt, with a small piece of bread, upon the table, ready for the fifteen men's support while mowing Cae Mawr. So when the fairies beheld the scanty provision made for so many men, they said "Let us quickly depart from this place, for alas! the means of our hosts are exhausted. Who before this was ever so reduced in circumstances as to serve up a sparrow for the day's food of fifteen men?" So they departed upon that very night. And Dewi Dal and his family lived, ever afterwards, in comfort and peace.'[36]