Disasters are rarely caused by a single action or event. More often than not they result from a series of small failures that culminate in a whopping show stopper. You might have already seen the attached presentation. If not- Hit the link below and take a moment to see just how wrong things can go when people “rig” equipment, disable safety devices and use it in ways not intended.
www.cdc.gov/eLCOSH/docs/d0500/d000585/d000585.ppt
www.cdc.gov/eLCOSH/docs/d0500/d000585/d000585.ppt