Yes, if we count newspaper articles in a local paper (but under my name) as published.
Have you ever been in an airport and had your flight cancelled? (bonus points if you were overseas at the time)
YES!! We were just in St Martin and our return flight was cancelled. It was a little scary.
Have you ever sky dived?
No, but someday I hope to.
(Great ham radio story, Spoons!)
Have you ever cooked a ham yourself?
Yes. I’m single (divorced), but Christmas seems a little more special than regular days. So I get a little ham, cook it, and enjoy it with veg and potatoes, and a fine wine. I like it; maybe I should do it more than one time a year.
Have you ever had the veterinarian euthanize a pet?
Yes, sadly.
Have you ever been on a safari?
Yes, both in Kenya and S. Africa (depending on how you define safari; I wasn’t camping out among the natives and the fauna).
Have you ever flown more that 12 hours non-stop?
No, fortunately, but I have some friends who’ve done so repeatedly, down to South Africa and back.
Have you ever sat in the pilot’s seat of an airplane?
Yes. (a friend’s Cessna)
[del]Have you ever changed your mind about leaving me behind?[/del]
Have you ever posted bail for someone?
Yes, some relative of my ex wife (when we were married).
I can’t even remember the charge, but nothing too serious I’m sure. Seems like it was around $500 fee ($5,000 bail).
Have you ever been in the back of a police car?
Yes. I don’t drive, and when I was called up for jury duty I called the local sheriff’s department, and they drove me to the courthouse. I wasn’t picked for duty.
Have you ever tried to shop for groceries on Thanksgiving Eve?
No, but I have tried grocery shopping the day before a snowstorm was due to hit, so I think that should count.
Have you ever failed a course in school?
I failed my entire first semester of college, except for Drafting 101. That’s what happens when you don’t go to class.
Have you ever seen a polar bear in the wild? I did when I visited Barter Island, AK
Nope. Never seen a polar bear outside of a zoo.
Have you ever owned either a lava lamp, black light poster, or a magic 8 ball?
I think I had a Magic 8-Ball awhile back.
Have you ever gone backstage at a big rock concert?
No, but I had a lava lamp, black light posters AND a Magic 8 Ball and a Strobe Ball. Ah, the 70s!
Have you ever worked for an election campaign?
We signed up voters and went door-to-door for the Obama campaign. For what it’s worth, I too had a lava lamp. 
Have you ever cooked a meal for 20 or more people? I did it for 25 once for Thanksgiving.
Yes, I’ve cooked Thanksgiving dinner for 20, and Christening party lunch for 35.
Have you ever had an emergency involving car keys? (I’ve locked my car with the keys inside and 15 years ago I had the key to my 1988 Volvo snap off in the ignition)
Yes, oh god I have locked myself out of my cars a bunch. I have extra key fobs everywhere, and key in those magnet boxes stuck on my bumper. I have locked myself out of my house. I have locked myself IN my laundry room, I know who has a backwards locking door on an interior door? Me, that’s who. I think my contractor hated me.
Have you ever incubated eggs and made baby chicks?
Yes, if having eggs in an incubator in our second- and third-grade elementary school classroom counts. Fun to watch the chicks hatch and become little yellow balls of fluff. It was long ago, and my memory is hazy, but I believe that at some point, they went to live with a nice farm family. 
Have you ever driven across a land border between two countries?
Every January. Driving in St Martin we cross the French/Dutch border every day multiple times.
Have you ever ridden on a ferry?