The Prophet (pbuh) would endure their interruptions while he was speaking.

“While the Prophet of Allah, sallallaahu ‘alayhi wa sallam, was speaking to the people a Bedouin man came and   asked: ‘When is the Day of Judgment?’ The Prophet of Allah, sallallaahu ‘alayhi wa sallam, continued to speak, so some people said: ‘He, sallallaahu ‘alayhi wa sallam, heard what he said but disliked it.’ Others said: ‘Rather he, sallallaahu ‘alayhi wa sallam, did not hear him.’ When he finished speaking he, sallallaahu ‘alayhi wa sallam, said: ‘Where is the one who was asking about the Day of Judgment?’ He said: ‘Here I am, O Messenger of Allah.’ He, sallallaahu ‘alayhi wa sallam, said: ‘When the trust is lost, then wait for the Day of Judgment.’ The man said: ‘How is it lost?’ The Prophet of Allah, sallallaahu ‘alayhi wa sallam, replied: ‘If the affairs are given to those (people) undeserving of them, then wait for the Day of Judgment.’”1