The week spent in St Andrews with the choir for graduations has been absolutely amazing . Since the choir was singing , we were given free New Hall accommodation and food , and free wine , carrot cake , sandwiches and small treats at the garden parties , which were also free . This meant that after the garden parties it was very difficult to get the mildly tipsy choir to sing , let alone manage a concert which we attempted on Wednesday night . On the other hand , no matter how badly the services / ceremonies / concerts seemed to go , we were heavily complimented for our work . Our " work " tended to consist of a few hours rehearsal before every service in which we rehearsed an anthem , two hymns , and 4 songs for the graduations .
According to the above context, answer the following question.
Why was it difficult to get the choir to sing ?


They were stuffed with food .