Just a month or two after we got Ashley we happened to have the bad luck of walking right under the siren used for tornado warnings when they did their monthly test. (Something they do on the first Tuesday of every month at 10 AM.)
Ashley started howling along, which made me laugh. But then Ashley looked a little embarrassed, and I couldn’t have that.
So I started howling along with the siren myself, to assure her that it was entirely appropriate behavior, and she joined back in.
We’ve done that every month since then, but I had failed to capture it on video until a couple of days ago with this month’s test.