It is often a person's responsibility to keep their own home safe and secure and so when somebody leaves their door unlocked and gets robbed it can be quite a let down
Context: "I couldn't believe I left the front door unlocked and the mailman robbed me." Claim: "I was really let down when I found out that the mailman robbed me because I left the front door unlocked"
Considering the context, is the claim true, false, or unknown?