Some of the finer points my recent gaming companions seem to have missed out on:
1) If you are unable to play, do not delay the game by trying to be cute.
Do not wail, “Man, this hand sucks!” Do not blow a raspberry. Do not mime stabbing yourself in the chest, shooting yourself in the head, or strangling yourself with a noose. Do not roll your eyes. Do not moan. Do not make an inarticulate gagging sound in the back of your throat. Do not remain silent and expect everyone at the table to infer that since you passed last time, you’ll pass this time, even though the rules allow you to play after passing.
Say, “Pass.” Say it promptly and clearly so that play can proceed. Then you may put on whatever childish display you wish.
Exception: If you’re playing cribbage, you do not say “Pass,” unless you want to sound like an untutored cretin. You say “Go.”
2) If you are playing an RPG, you may roll dice under exactly two circumstances: [ul]a) The GM has told you to make a specific roll.
b) You have asked the GM for permission to make a specific roll and the GM has granted permission.[/ul]You do not roll dice when the GM tells someone else that they can try a roll, and you think your character is in a position to do the same thing.
You do not roll the dice, and then tell the GM what you roll were attempting.
You do not roll dice constantly and for no reason, unless you want your percentile dice crammed so far up your nose that you sneeze numbers between zero and ninety-nine for the rest of your life.
3) No, you may not keep that roll. If you roll (let’s optimistically assume that the GM sanctioned the roll) and it turns out that what you were trying to roll for is not possible, and you want to try something else instead, you roll the dice again, and don’t whine about it. I don’t care if you’ve “wasted” an automatic success. If you’d failed on the stale roll, you’d never ask to keep it, and if you cannot understand how that would skew the results and make them non-random, then you need to wander off and find a game of Chutes and Ladders and let the adults continue their grown-up game.