The context of the following conversation is Every morning Sasha has cereal for breakfast. Sasha realizes there won't be enough in the jug for breakfast & runs out to the store.:
Sasha says I hate having to go to the store for milk in the early morning..
The friend responds Oh, did your family leave you an empty milk jug again?.
Sasha responds Well it was almost empty. I am so sick of their selfish behavior..
The friend responds You should start a house rule where the last person to use it must buy a new jug..
Sasha responds That's a good idea. I think I will put that rule into place..
The friend responds It promotes selflessness and responsibility, so I think you will be pleased with the results..