With the #1 pick you'd likely have gotten a player of at least some value. Why would anyone ask you to give that up because he made a mistake? If it's a brand-new player I'd trade him back for someone comparable to the next-best player in R5, whom you would have taken, but only after making sure the new player had gotten a mentor outside of the world. If it's someone with more than 2 seasons, Arfy's got it right with the tough luck and joke about his mother, though I'd throw in posting at least one Jim Mora level "Are you serious?" rant in the world chat.