So I'm in a group and one of the players is a Shadowdancer, I've had no problems with this class before. The player used his shadow jump ability but used it wrong. This play swears up and down that since shadows are made of darkness that he should be able to jump through anything that is in darkness. He also believes that the dark half of the earth (night time) is one big shadow, I've tried to explain to him multiple times what causes shadows but he returns to his shadows are darkness theory. The only real problem I have with this is that he believes that if its dark outside that he can just jump anywhere he pleases and thats his only limitation, but he still uses shadows correctly during the day. We have gotten to the point where another player has yelled at him that he is wrong and that he is generalizing things to make his point work in his favor. So I've come to you fine people to help settle this little argument before this player breaks up this group any further.