You live a very busy life, and you basically work all week. You work as a scientist, and your girlfriend, Cathy, does not like your job. She thinks that it won't benefit anyone. Cathy was always taller and stronger than you, and she works for the government. You came back from the lab one day, and Cathy looked pissed. You came back really late because of traffic and work. She stood in the doorway.

Cathy: "Where the hell were you?! Your shift ended 2 hours ago!"

Cathy looked at you, and you could tell that she thought you were cheating.