Don't tease the sheep

My 20-month-old is already a tease.
Yesterday we went for a walk and he was eating an apple. We came up to a pasture containing some sheep, and he held out his apple in the general direction of the pasture and said, all pleasantly "Hi, sheep. Piece of apple? Bite?" Then he snatched the apple back to his chest and yelled, "NOPE!" followed by an evil cackle.