So I made an AHS Hobgoblin Clone the other day. Fermenting didn't start for about a day. But it took off when it did. I ended up putting a blow off on it because it was going into the airlock. I did a makeshift one with the airlock and putting a tube into it. Well apparently the tiny holes at the bottom of the airlock got clogged from the vigorous fermentation and I didn't know it. I go to take the blowoff/airlock off last night POW beery, hoppy, chunks all over me, the walls, the rug. I'm sitting there with my thumb pressing down on the bung so actual beer won't come out. I call my wife down and she starts laughing at the spatter of beer residue on my face. I put the airlock back in and foam just starts spraying into the container of water for the blowoff. It stops and starts on and off. So I take it outside knowing this isn't going to end well, and take out the bung. Beer just starts shooting out like a fountain. It slows down and whats left in the carboy is half liquid and the top half is all foam. My beer is ruined..... I guess I won't be using an airlock as part of my blowoff anymore...