Describe the encounter of Mr. Hubert Baumbach on 2008/10/25.
encounter refers to DESCRIPTION from encounters; on 2008/10/25 refers to DATE = '2008-10-25';
SELECT T2.description FROM patients AS T1 INNER JOIN encounters AS T2 ON T1.patient = T2.PATIENT WHERE T1.prefix = 'Mr.' AND T1.first = 'Hubert' AND T1.last = 'Baumbach' AND T2.date = '2008-10-25'