I recently acquired a good very lightly used (like, still had the nubs on the tires) bicycle for my wife... it's been frustrating because I can't get the damned indexed shifting to work smoothly. Today I thought I finally had it, took it for a test ride, everything was working great, etc. Greeted my wife at the door when she got home from school with an offer to take Rosie (named after Rosie the Riveter, wife's doing) for a test ride.
My wife has not been riding a multi-speed bike, and is needing instructions on how/when to shift. That's not me being controlling, that's her idea. Personally, I have difficulty understanding what is hard about it. It's like a car - you start in first, when your RPM's are too high, you shift to 2nd, etc. Additionally, it's a trigger-shift, there's literally nothing that you can adjust, you just click the shifter and it goes to the next gear. But anyhow, she feels she needs coaching, so I go along with her on her old single-speed. About a mile into the ride, the chain jumped off the jockey-wheel (little gear at the bottom of the derailleur) which makes the shifting all wonky again. She asks me if she did something wrong shifting... I tell her quite honestly "No, it's not possible." I fixed it, and it happens again a few minutes later, and she asks again if she'd done something wrong. Now, this is the 2nd time TODAY, but she'd asked the same question a few days prior when I was working on the bike and got the same answer... and this time I got a little sarcastic with her, and said "Yep, it's all your fault. Happy now?". She laughed it off and said "Ok fine, it's not my fault." which doesn't make it ok, but I sort of left it there.
We got home, and as I was parking her bike and preparing to take her bike up to the porch/work area to mess with it some more, she asked me a third time for the day if she'd done something wrong...
And despite all of my classes, despite knowing better, and knowing better ways to say it, I snapped at her. Instead of properly saying "I feel like you're accusing me of lying". I instead said "No! You didn't do anything wrong! I've answered the same question three times now." and she went into the house. I felt absolutely horrible, and followed her into the house maybe 5 seconds later. She confronted me (yay for her! Big step!) and said "I didn't deserve that." and I said "No, you didn't. I'm sorry I snapped at you instead of telling you how I feel. I should have said that I felt distrusted and that I felt you were accusing me of lying to you." I also thanked her for telling me that it was not ok for me to have done that - she's been working on being able to speak up to me when something's wrong, it was a big step for her.
After a bit of talk, we were both in a better place, but she had to leave for work right after, and I still feel horrible.