Someone (probably) almost stole my new skis

I used my fresh pair of skis today and during the lunch break (in the base area) I left them in one of the stands. 20 min later when I went to retrieve them I only found one of them.. After a lot of search I found the second one on a rack far away from where I originally left them.

Is this a potential theft? Why someone takes only one of them and then leaves it far away?