Friend: i have an idea
Me: what is it?
Friend: uber is not yet here, lets do the app exactly like uber only for the city, can you do that like in one month?
Me: uber is a billion dollar company with several and the best engineers in the world
Friend: so what, just copy the exact same idea, of course the money comes when the app is done
Me: sure... ill call you in a month. (delete conversation)