While Dexter is waiting for Miguel Prado in his office, Dexter is playing a game on Miguel's computer. When Miguel arrives he takes Dexter's place and closes the program. However, when the camera angle reverts back to Dexter, the game is still visible on the monitor.
Anton had an area of skin approximately 4 to 5 inches long and several inches wide removed from his back and shoulder extending nearly to the middle of the top of his shoulder. Yet when he meets Rita he's wearing a wife beater t-shirt that lays directly over the site of his injury. Little or no dressing is visible, and he shrugs his shoulders with out even a twinge. This seems unlikely with the size and depth of the injury seen.