to wish that the woman who took my space at the gym would fall off her step? Even the instructor went down to no steps for one routine, but this woman (the one who took my space), kept three steps, as shown below, although this photo was after she had set up for the weights class and had left the room -- I did not want to take the photo in front of her and inspire questions.
It's my space. Mine. It took me a few weeks to figure out exactly where to stand during class so I wouldn't be hit by the gale-force winds from the three fans and the overhead vents. It's only 10 degrees outside -- of course we need to make it colder in the gym. Heaven forbid that anyone actually sweat during an exercise class.