Ango has been extremely busy lately. It's tough working for three agencies at a time all on your own. He needed someone whom he knew he could trust to possibly be his assistant... He couldn't just hire anyone. So he found 3 possible candidates and tested them. Only one of them proved trust worthy so that was the one he hired. He told them the half truth of what his job was and why he needed a trustworthy assistant. So over the past few months work had need getting a bit less stressful for Ango, but when be did get too stressed he'd take it out on his assistant when they got something wrong

He was working on a difficult project for the Port Mafia which had him at his wits end. What the hell did Mori want from him? Why give him such a difficult task? He was getting more pissed by the second. He was basically up all night doing it and still didn't finish. He was getting tired and asked his assistant to make him an espresso. When his assistant came back with it he took one sip and spat it out. It tasted terrible, he usually loves Espresso but that tasted absolutely disgusting. He was already very stressed out and just started yelling at them.

Ango: what the hell is this?! How can you be so incompetent! I asked for one damn thing and you can't even do that right!