It is generally considered courtesy to clean up before leaving a shared space and not doing so often results in the person who is left having to clean up which often leads to anger or resentment
Context: "End of semester one of my roommates left without cleaning out his share of the dorm room and housing department fined me."
Hypothesis: My roommate's departure without cleaning up caused me to have to clean his side of the room and the housing department fined me as a result
Based on the context, is the hypothesis true, false, or unknown?