Board Thread:Skyrim/@comment-122.150.45.55-20130716112805/@comment-6881629-20130716122504

One option is to attack Brynjolf until he goes down to his knees that sometimes fixes it... but the other thieves if their around will probably attack, then you'd need to Yield or use a powerful Calm spell or scroll.

General advice with Brynjolf is always let him start the conversation if posable and never cut him off when hes speaking.