In a gym with several unused treadmills, someone with headphones on is walking on one of them. Are there any circumstances short of a fire alarm or closing time you would come up on the next treadmill and lean in to their field of view to get their attention?
I had been walking slowly backwards with my hands over the rails, I lifted myself up and put my feet on the sides - there are edges specifically for doing this - turned round and was walking forwards and turning up the speed and incline.
I had to stop the machine losing my stats, take off my headphones and stop my podcast, and engage in a several minute conversation which turned out that she wanted me to use the stop button on the string rather than the side platforms to turn around.
She was sat on the rowing machine from before I arrived till after I left, though I didn't actually see her row.
Surely she could and should have waited till I'd finished if she really wanted to tell me how she'd prefer me to do things. In fairness she was smiley and friendly, but ruined my whole workout. There is more but this is long.