linked to his drinking...
Have you talked to him about the smell ? i think you need to be honest about it for his own good, so he can address the issue. If it is liked to him drinking, he needs to stop. When you say you 'investigated'' and found it to be 1 or 2 shots is that what your son told you? i never stopped at 1 or 2 when i was 15 years old drinking. He shouldn't be drinking any shots at his age