Groomsmen do not have any other responsibility but to help the Best Man pay for shit during the stag party. You should also be available to help if/when the Groom gets shitfaced.
I almost forgot...you are also there to help cover up what happened that night. You need to make sure you get your story straight with all the other guys.
Bestman = the worst gig in a wedding. Be glad you're just along for the ride.
That said - you might want to consult w/ the best man to make sure you don't get a bad job.. Most Bachelor parties I've been on, we had a "Buy in" - say $500 for the weekend. To cover everything. THen a "Bagman" pays everything through the weekend. THe Bagman prevents arguments, penny-pinching, and bitching. If you run out of funds, everyone hits the ATM again for a certain amount.
Usually there is some fool who will charge everything on his credit card for the miles, then you end up spending the cash too... but fuck it.. as long as you're not the bagman, it's not your responsibility.
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