Open ticket = resolved ticket!
Final user to salesman: I need you to develop (a drawing of a castle appears)
Salesman to Product Owner: The user wants (simpler castle drawing appears)
ProductOwner: No need to utter another word.!
Product Owner for tech lead: I need the dev team to do it (a drawing of a tent with two towers appears)
Tech lead: Got it!
Tech lead for the dev team (and Scrum): Devs, you have to develop (drawing of a sandcastle appears)
Dev: No sweat, fam!
Dev (on computer): I finished on time!
On the screen, a castle, a bucket, a plastic shovel, and a sand castle in the shape of the bucket.
T-shirt: Open ticket = resolved ticket!