Hard to please.
1734. Children were early accustomed not to be nice or difficult in their eating.Tr. Rollins Ancient History (1827), iii. 32. (N.E.D.)
1817. [The landlady] asked the ladies if we were not English, and said, she would rather not wait upon us,we should be difficult.M. Birkbeck, Journey in America, p. 44 (Phila,).