I've never skied. Did some langlauf, though. One of my langlauf skis was kaputt so it acquired adjusting every ten meters or so, which made that trip not something I'd like to repeat any time soon. The trouble was that I had a time limit to finish the trip, so when the stupid ski did function properly, I had to be that much quicker to gain time.
The guides accompanying me (I was the last one so they had to stick with me) thought that I was putting on a show so I had a non-stop argument with them about it during that darn trip.
Them: "Oh come on, don't be such a baby. GET ON WITH IT"
"Do you think that I actually like having to stop every couple of meters?"
Them: "I think you're not trying hard enough"
Me: "You try them on then. See if you like it. I'm not doing this for my own amusement, you know. I'd rather be with the group than this faffle. My ski is not closing properly. It's not my fault that you gave me bad skis, FFS. Why didn't you check the material properly?"
Them: "There's nothing wrong with the ski but you're not putting it on well"
"so, you really think that I'm doing this on purpose. You think that I like having to work at least twice as hard to do the same trip. Unreal"
It's only afterwards when they checked my ski that they acknowledged that my ski was wrong:
Them (after studying the ski): "...Ah...er....the ski was not functioning properly after all"
Me: "Thanks for not believing me when I tried to communicate that message a gazillion times during the trip."
---> no langlauf for me, thank you very much.