What am I 16?

I got drunk and sang karaoke at an office party last night. Need I say more? Ahhhh yes, there's more. How about the fact that the party was actually held in the office, and I don't remember leaving, or how I got home from the Bart station. And I've saved the best for last; I got sick on Bart and had to puke in my backpack. I'm sure I was soooooo discreet.