I'm really, really flexible and tolerant, always trying to live in peace and mutual understanding with others. But once every couple years, it happens that somebody manages to f*** my brain up so much that it turns a switch. For those five minutes I'm in God Mode and put everybody back where they belong. Completely fluent. So yeah I can get so annoyed that I forget to stutter. Edit: Having a great time with somebody, being completely relaxed and confident also works, I can be completely fluent then. Arguably better than the 5 min God Mode, but I still find it funny.