I walked over to an machine I wanted to use and found a towel on it, but no one around. I looked around didn't see anyone who looked like they were using it. I even asked my husband who was on a machine close to it if someone was using the machine. He said the guy had walked away but didn't know where he went. I removed the towel to another machine nearby and got on the machine. After doing one set on the machine, a guy comes over and said "I only left that machine for a second". I told him I had two more sets to do. He stomped off in a huff. Was I wrong not to give him back the machine? Come to find out he was all the way across the gym in another area using a different machine when I got on this one. I'm guessing he thought he could "save" this machine for when he got done on the other one so he could trade off.