9. You're Sure You're Still Hung Over

You're tired, have very little patience and you're craving a pizza at 9.30am... Clearly you're still hungover from the weekend's festivities. In truth, you were probably just drowning your sorrows on Saturday night because of the big meeting coming up this week. After all, the only plausible solution to making that meeting go away was to drink an excessive amount of tequila. Well, it made sense at the time.