@jcboy,
Seen within 5 minutes of walking into my gym this morning.
1) A guy doing curls with those long elastic bands while standing on 1 of only 2 flat bench presses. Cables were wrapped under it. A trainer was supervising this.
2) A guy doing dumbbell flyes on 1 of only 2 incline bench presses while there were open adjustable benches. Duh!