Is paranoia really where we've come?

I was on the train after a meeting for work heading back to my store. I was 1 stop away and look to my right to notice a homeless guy passed out, but in the seat between us a black briefcase all alone. I honestly panicked a little franticly pounding on the MTA's door until someone lady came out. I told her there is an abandoned bag. She calmly said oh I'll get it when we get to the end of the stop. Me, with my loud mouth said "Well I'm glad I'm getting off at the next stop."

I thought the worst when I saw it ended up having a laptop and before our next stop the person who left it had already called it in, so they grabbed it. But it made me take a deep look at myself.