I occasionally work with someone who in his mind always has the right answer and his idea of collaboration and problem solving is for everyone to agree with him.  When someone else tries to make a point he will cut them off and/or speak over them. He does come up with some good ideas every now and then but he kills the enthusiasm and ideas of others. When you talk to him he does not listen because he thinks he is always right so then why should he listen to someone else's flawed idea.  Most people just tune him out and let him say what he has to say but this has the effect of running out of meeting time and killing everyones motivation.  Any suggestions?