WALLBAG: Wall-Left Lemon Bag Acceptance Gate: a come-study marketing poster for the Master of Applied Measurement, built around householders' accounts of the point at which a bag of surplus lemons left on a front wall stops being a gift and becomes a favour owed. Resolving to WALLBAG: Wall-Left Lemon Bag Acceptance Gate: a come-study marketing poster for the Master of Applied Measurement, built around householders' accounts of the point at which a bag of surplus lemons left on a front wall stops being a gift and becomes a favour owed.…