I want a boxer really, really badly.
Friend of mine and former roommate has a boxer who is absolutely insane. He adopted her from a shelter. She was in the shelter because her previous owners couldn't deal with her energy/hyperness, and after a couple weeks we could see why she might be a bit much to handle. Never a dull moment around that dog. She isn't a bad or mean dog and she's very fun to play with, but I wouldn't recommend a boxer unless you have a lot of patience (or if you're better at training and teaching dogs than our dumb asses).
She has jumped through and shattered several windows, that's a lot of fun to explain to the landlord. Her bark is loud enough to wake the dead. When nobody is home, she has a habit of tearing up any produce left on the counter (onions, potatoes and tomatoes are her favorite). She likes to play rough and has drawn blood on both of us multiple times while playing. One time after a party, we passed out drunk and woke up to discover that she carried Gatorade bottle spitters onto the couch and somehow pried the fuckers open, spilling tobacco spit everywhere. She gets jealous if you're with a girl on the couch and will try to wedge herself between the two of you. She also chews up shoes and socks if you leave them around her.