| Gary Van Binsbergen |
Before the game starts I would have each player roll 20 sided several times in front of everyone. To save time you could have people pair up and write down their partners results. Then turn the results in to you and use them in the game. Using the rolls in order they were rolled for initiative, attack, skill, and saving throws.
Players are going to complain but you should only have to do this for a couple or few games before everyone gets the message that cheating is not acceptable.
We had a cheater once, a friend just like yours, and we decided to handle his unmarked dice and excessive high rolls and hand cupping the die, reading the result while it still rolled with mutual cheating towards him.
I had my DM screen up so I couldn't see his rolls, my brother could see them and when he cheated my brother would kick me every time the monsters needed to roll high against his character. I made it loud...natural 20, owe double damage. After one or two game sessions he got the message, quit all of his cheating techniques and there was no confrontation.
I didn't do this in a huge battle that threatened the other characters survivability. Its amazing when low level monsters kick the crap out of you and you get teased by the other players when your mid-level character gets beat up by an orc.
I don't advocate cheating, but did this to send a message and to reduce the chances of a confrontation. I didn't have to kill any characters, just make it equally as obvious that when he cheats, we knew it and there were consequences. ALL MY OTHER PLAYERS WERE IN ON THIS IN ORDER TO TEACH HIM NOT TO CHEAT. IF YOU DO SOMETHING LIKE THAT I WOULD INCLUDE THEM IN ON IT. THEY WILL BE MORE SUPPORTIVE, UNDERSTANDING AND PATIENT.