While doing the series of quests associated with the Thieves Guild, specifically the one entitled "Speaking with Silence," I have come across a major flaw that has prevented any further progress in both the Thieves Guild story and the main quest. Once I've fought my way through Snow Veil Sanctum and arrived at the door that looks just like the one that paired with the Golden Claw before, the game comes to a screeching halt. Mercer Frey, the leader of the Thieves Guild is supposed to be able to open the door, but rather than do anything productive, he does nothing but stand there. After pushing him to the door and restarting and reloading countless times with no results, I thought "Well screw the Thieves Guild!" and went off to quest elsewhere. The problem is now that Mercer Frey WONT STOP FOLLOWING ME! He tails me everywhere I go, ridiculing me for "stopping" and being too "noisy." At first, it was bearable because he'll fight anyone who attacks me, and he's invincible. Having an invincible bodyguard has its perks, and I blew through a lot of quests with extreme ease, but now I am trying to do the main quest. I am at the quest entitled "The Fallen" where I have to call Oodahvin and trap him in Dragonsreach. The only problem is that when I call the dragon, I can't lure him into the trap because he will stay at the end of the balcony fighting Mercer Frey to no end since neither of them can die. Can anyone give me any kind of insight on how I can complete "Speaking with Silence" and get Mercer Frey off my back? I play on the PS3.