Based on the context and the answer, generate a question. 

Context: I had about 5 - 7 oz of alcohol this evening . Started drinking at 8 and ceased drinking at 12:30 . It is now 2:45 and I have had a full meal and 5 glasses of water . I also had about 300 mg of BC Powder at 1 am .

Answer:

They wanted to prevent a hangover the next day .



What may be the reason that they did this ?