Not exactly "in" the plane but for lack of traffic I went up in my plane to certify a new PAR controller. It was pretty gusty and of course it was hard for me to stay on an exact course. The first one went pretty well and before they switched me to departure for vectors to the next one, I gave my critique of what could have been done better. The second run which was a no gyro was a bit more relaxed but still rough to fly. After a few vectors where it didn't seem like anything he tried could keep me on course, he said, "you're doing this on purpose aren't you?"
My wife's first ride:
"Would you like to fly for a while?"
"Um.....okay" she takes the yoke, grips with both hands - white knuckles"
one millisecond later
"Oh God no...YOU take it."
Wife's second ride with me, this time cross country to Phoenix with ADS-B in on my iPad:
"There sure are a lot of planes out here"
"Not really, you have it zoomed out, most of them are at least 15 miles away."
"That one's not, he's right next to us."
"He's fifteen hundred feet below us."
"What about that one?"
"Its five hundred feet above us and climbing."
silence
"You okay?"
"I don't like this."
She hasn't flown with me since.