“If you voted by mail, some postal worker will probably just shred you ballot anyways (per several threads here, although Snopes — LOL like I trust them — say it’s fake).”
When I read that story, I wondered how the postal worker knew that the ballot was marked for Trump. Did he just start opening ballots until he found a vote for Trump?
Short answer: Snopes and others say it did not happen, but yes. Then he apparently re-sealed the Hillary votes after destroying the Trump votes.