Hussein would be subjected to several more assassination attempts. One involved replacing his nose drops with strong acid. Another plot was uncovered after a large number of cats were found dead in the royal palace; it emerged that the cook had been trying poisons to use against the king. He was later pardoned and released after Hussein received a plea from the cook's daughter. Assassination attempts against the king subsided after a successful coup toppled the Syrian regime on 28 September 1961 and the UAR collapsed. With a calmed situation in Jordan, the King issued his slogan "Let us build this country to serve this nation." But critics considered the slogan mere lip service, saying Hussein showed little interest in the economic situation of the country, unlike the military and foreign relations aspects.