Haha, I'm behind on reading so this is late, but I laughed so hard my morning cup of coffee almost came out my nose. This describes my mornings at work too perfectly.
I've been trying to tell my mom this for years! she's one of those perky people and we used to have some of the worst fights in the morning because her perkyness would tick me off . . .
Perfect.
After I've worked a long day, gone home to endure about five hours of sleep and wake up to have to head back to work... nothing is worse than upbeat co-workers.