Go Down, Dammit!
I was at the gym a couple of days ago, running on the treadmill, when a lady a couple of treadmills down yelled "GO DOWN, DAMMIT! I told you to GO DOWN!!"
It took me a couple of minutes to realize that she was yelling AT the treadmill.
She stayed on for about another 20 minutes, yelling at the treadmill every 5 minutes or so, until she finally exploded into a rage (shaking the handles that measure your heart rate, stomping angrily, and so mad she was yelling in a hysterical squealing voice), turned the treadmill off, and then stomped out of the gym in a huff.
I don't love the treadmill either, but I can usually remember that its an inanimate object. ;)