I'm the same way. Our mail system down here is so unreliable, and I admit to having trust issues. A friend of mine mailed a large box of expensive clothing to her sister, and when her sister got the package she was more than a little miffed, because the box was full of old, soiled kid's clothing instead. One of the postal employees had raided the box, took all of the good stuff out, and replaced it with her kid's junk to match the weight. She did things like this to multiple people before finally getting caught in spite of constant complaints to the Postmaster.
We had another postal worker who was caught intercepting mail-in early ballots sent to our elderly, retired population and filling out and returning all of the ballots himself with the candidate choices he preferred. That one never even made the local news, which really infuriated me. They quietly fired him but I don't know if he was ever prosecuted. I only know about it because we do a lot of work for the local auxiliary police department, and they like to gossip.
Yeah....I have trust issues.