How to wake up in the morning

So, the other morning, I got up early to go to the bathroom. It was about 6am. Still groggy and half asleep, I finish my business, wash my hands and turn around. There, standing in the doorway, is a person. I must have jumped a foot. The quick rush of adrenaline subsided when I realized it was my roommate Nathan, who had a final at 7, who's alarm had sounded shortly after I left for the bathroom, and who had silently come out and was waiting for me to finish so he could use the shower. I don't think I have become fully awake faster in my life.