1, my husband bought rice from the company or school canteen, and the lunch box was provided by the canteen: the company or school canteen provided lunch boxes for employees or students to pack and take away, and my husband bought rice from the canteen, so the double-decker lunch box was brought back only because the canteen provided such lunch boxes.

2. My husband buys it from outside and takes it back: My husband usually doesn't bring rice because he likes to buy it outside or the food provided by the company and the school cafeteria is not to his taste. He probably brought back the double-decker lunch box because he bought two meals or food and soup outside.

3. Husband brings meals from home: Husband never brings meals, and suddenly brings back a double-decker lunch box because you or other family members prepared meals for him and put them in the double-decker lunch box.