Meet the drunk. Instead of wine-stained teeth and chubby arms, he has an affinity for close talking and public urination. Your office's 8:30 a.m. arrival time does a lot to cloak the debilitating alcohol problems of your coworkers, but the office party reveals everything. If this sounds like you, see if you can set aside a percentage of your 401K for bail money.
And please, keep your shirt on.