What to do when you have an annoying intern?

[dominatrix1]

I work for a startup company and recently got an intern to help as my workload was getting a bit too much. It started off quite well ok and he was doing a good job but as time has gone on hes getting lazier and lazier and when I ask him to do something he doesnt do it and tells me its a bad idea.

Im not really sure what to do Its got to the point where I kind of stop talking to him. He's a marketing intern so when I ask him what hes's got planned he just says outreach where its quite hard to show tangible success