One day, Gregor Samsa, a traveling salesman, wakes up to find himself transformed into a giant insect (the most common translation of the German description ungeheur Ungeziefer, literally "monstrous vermin"). He reflects on how dreary life as a traveling salesman is. As he looks at the wall clock, he notices that he has overslept and missed his train for work. He ponders the consequences of this delay. Gregor becomes annoyed at how his boss never accepts excuses or explanations from any of his employees no matter how hard-working they are, displaying an apparent lack of trusting abilities. Gregor's mother knocks on the door, and he answers her.