Again, if you really feel that someone is sitting somewhere and personnaly giving you bad dice, you should just go somewhere else to play.

Why don't we tell whoever is messing with your dice to stop? Well because for 1) We do not know who is doing that, and 2) I personally do not believe that someone would do that.

Again, I don't think there is any way for me (or anyone) to make you believe that, so maybe it would be best just to play somewhere else that you trust more.