Leon raps at the door, stepping back, arms crossing over his chest. He sighs under his breath—the sounds of music and clamoring voices loud even through the door to the apartment. He’d already had to dodge two inebriated partygoers on his way up the stairs, so he knew this call was going to be an annoying one. At least it’s boring, he thinks. Safe. A noise complaint, he can handle that no problem. When he gets no answer, he knocks once more, louder.