Tondemonai desu (とんでもないです): not at all. Said modestly when a superior thanks or praises the speaker. The Agency for Cultural Affairs’ guidelines on honorific language of 2007 treat it as acceptable for lightly turning aside praise. Kyōshuku desu (恐縮です): I am much obliged. A business guide explains that kyōshuku also means feeling sorry for causing trouble or for receiving someone’s kindness.