How many negative comments did Neil McGuigan get in his posts?
Negative comment refers to score < 60; DisplayName = 'Neil McGuigan';
SELECT COUNT(T3.Id) FROM users AS T1 INNER JOIN posts AS T2 ON T1.Id = T2.OwnerUserId INNER JOIN comments AS T3 ON T2.Id = T3.PostId WHERE T1.DisplayName = 'Neil McGuigan' AND T3.Score < 60