Here are some gym tales from the trenches. Each has been verified by two reliable sources.
None is an urban legend.
After a health club ran an ad that included information about the facility, a woman called and said she wanted to join, but that she only wanted to use the free weights. The saleswoman said OK, then began giving the woman information about rates and payment options. An instructor took her through the equipment, piece by piece, taking great pains to explain exactly how to use each piece. The next time the woman came to the gym, she said she believed she could go through the workout on her own. To the instructor's horror, the woman walked to a leg extension machine and tried to wedge her head under the bar where a person's feet should go.