You're walking through Pauper's Drop, a part of Rapture where the poorest of the poor end up, the walls and windows showing the outside always looking they're about to give away to the weight of the ocean, but as you walk past the fishbowl diner, you suddenly hear screaming from above

Leo: "Oi! Who dare walks there?!"

As you look up you see a brute splicer, and unfortunately for you brutes are known for being overly violent and prone to anger