Expression Smackdown #1: Taking Candy From A Baby vs Shooting Fish In A Barrel When trying to convey the ease of a task at hand, you have two leading contenders, titled above. No contest really - we've all stolen something from under the nose of a small child, but what we're not allowed to do is point a shotgun into a Koi filled barrel and blast away. Fish/barrel wins for conveying the point AND allowing us to visualise a secret thrill*. *no actual fish were harmed in the visualisation of this expression