In a friendship, reciprocity occurs where the contribution of each party meets the expectations of the other party.

He grew up on the wrong side of the tracks, but he made a success of himself.

Quality of life depended largely on the attitudes of the production team leaders and the local peasants, and the zhiqings' experiences with the peasants were varied.

Thus I would describe 'He took his leave and the wrong umbrella' as zeugma, but not 'He took his hat and umbrella'. Zeugma is an important element in Chaucer's poetic technique, not because he uses it, but because he so regularly turns it down.