LOOK AFTER THE EQUIPMENT (PUT IT BACK WHERE IT BELONGS AFTER YOU’VE FINISHED USING IT)
This one just comes down to simple courtesy. It isn’t difficult to put all the plates, bars and equipment back in the racks, and to treat them with respect. There is always a slight ritualistic element to training, and the respect that comes with that should never be underrated. Look at martial arts, or Olympic weightlifting for great examples of this.
Watch Dmitry Klokov in this amazing Thruster ladder from 122 kg (270 lbs) – 175 kg (385 lbs). After every lift he walks around the bar because for many Russian lifters, they see it as disrespectful to walk over the barbell.