It's wrong to disturb your friend's wedding.
Scott and Steve are lifetime friends and Scott is picked to be a groomsman for Steve wedding.
Scott wants to have a good time at the wedding and reception.
Scott makes a nice speech and has a great time with the party being very helpful throughout the wedding and reception.
Scott gets very drunk at the recption makes an awkward speech and hits on some of the bridemaids in an unwelcome way.
Scott is respected by everyone who goes there and the friendship of Scott and Steve strengthen.
Scott is seen as unreliable by Steve and the friendship is never the same after that.