So I was kickboxing yesterday at a dojo that has three main sections. The sections are partitioned off by barriers, but one can look in and see all three-there are no doors dividing anything. All three sections were being used: one by the kids' Karate class, one by the adults' Taekwondo class, and the final one (in the very back) by my class. We were doing pad drills, holding them for our partners and working on front kicks, and in between sets doing army crawls up and down the section, and other PT exercises. Now, people occasionally skirt the perimeter and have to enter each others' sections for various reasons, which they do by discreetly running behind the class that's going on. This may happen once or twice a class at most.
However, yesterday a man (parent of a karate kid) walked around the perimeter in the front of our section (in front of the mirrors) with a baby. Not that big of a deal deal, an exit door is in our section and we were clustered in the back half, at least 60 seconds (we were doing 60-second drills) away from spreading out and running up and down the section. But instead of going out the door, the man proceeds to set the baby down on the ground near the door and change its diaper. We were all staring at them in shock, and eventually our instructors turned around mid-sentence and say "Just keep going with the-uh....well then, okay..." and were derailed for a moment before we continued with class. It was was the most bizarre thing I've ever seen at the dojo. Literally no one knew what to say. I don't know if it'll ever happen again, but it was certainly so odd that we were all rendered speechless, even the instructors.