Little-known vote-by-mail facts (to me, anyway)

According to today's Oregonian:

It doesn't matter whether you use blue pen or pencil to fill out the ballot or sign your envelope. However, don't use a black pen. Some black pens also have red in their ink formulas, which is not picked up by the scanner used to count votes.

And:

Each county elections office provides privacy booths for voters who wish to vote there or for persons who need assistance voting because of a disability.

And finally some questions based on the O's info:

People do occasionally report receiving two ballots, especially if they've moved or changed their registration. But only one ballot per voter is counted.

Really? How do we know only one ballot is counted? There's enough evidence of dead people voting that I find it difficult to believe a duplicate ballot isn't counted...

OK, two more related questions:

• Q: My husband says he doesn't want to vote. Can I fill out his ballot, sign his name on the envelope and turn it in?
• A: Not unless you're ready to go to jail. It's a Class C felony to sign another person's name on the ballot. The penalty: as long as five years in prison and a $125,000 fine.

• Q: Can only U.S. citizens vote in this election? Or can non-citizens vote in local races and school bonds?
• A: You must be a legal U.S. citizen to vote in any race. Anyone who falsely claims U.S. citizenship on a voter registration card risks going to jail for five years and paying a $125,000 fine.

Considering how stringent our elections division is about proving citizenship, it seems to me that a wife wanting to vote for her husband could do so without much fear of prosecution.

Can you say fraud?