Deacon is the most annoying companion so far in the Fallout games, he's bit of an arsehole actually: 1. Frequently goes on about dust. 2. Barefaced Liar. 3. Advises me against picking up items that have resources I need. 4. After time he will complain about teaming up and says he wishes he could vanish. 5. Sarcastic git. Once I get his perk I'm sending him off far away, there is possibly one other option but I'm not sure what will happen.