What have your experiences been with having someone mansplain something to you?

Women can mansplain too.

I did a little project yesterday that consisted of punching grommets into the top of a large piece of card board. I was going to use my wooden cutting board to take the heat and protect my kitchen table, which was doubling as my work bench, but the kit I had had a small piece of wood in it for that purpose.
I got 3 out of 5 of the grommets punched. My husband wandered through…then went to the utility room and came back with a piece of board. Told me to put it under where I was hammering or I’d end up with circular indentions on the table. Ya think?
I looked at him in disbelief and said, “Do you really think I was banging away on my antique, oak kitchen table with no protection?!” and showed him the wood I was using. You would think that by now he’d know to ask a question first instead of proceeding under the assumption that I’m stupid. But, you know, that’s how it was in the 50’s and 60’s when he was growing up. He was taught that women really aren’t as smart as men, we don’t really know what we’re doing, and need all the help we can get. He’s getting over it, slowly, but it has to be difficult. I have to consider that before I get too bent out of shape.

On a bright note he came to my defense when this guy came to appraise the house. I showed him the shelves I spent that one summer building. I thought it added to the value of the house.
He said, “You made those, huh.” Very flat, in manly disbelief.
I said, ”....Yes.”
He said, “You used power tools and everything, huh.”
Rick spoke up and, with a defensive edge to his voice said, “She knows how to use every power tool there is, including chain saws.” ((((( !♥ ))))

What have your experiences been with “mansplaining?”