The group discusses being too tired to get drunk, with SPEAKER_02 saying they feel that way because they drank a lot last night. They compare how they felt in the morning vs. afternoon and talk about feeling sick. SPEAKER_00 mentions having to reschedule a lesson due to feeling unwell, possibly from 'the mouth'. SPEAKER_02 complains of stomach problems and frequent trips to the toilet, calling it disappointing. One person says they learned from SPEAKER_00.