An employee was operating a reach forklift in an aisle that had been blocked off with a safety barrier. A customer went under the safety barrier and walked in front of the forklift to grab a case of mayonnaise. The employee tried to step off the forklift, but his shirt got stuck on the drive handle. The forklift then accelerated into steel pallet racking and the employee was pinned between the rack and the forklift. The employee sustained a fractured pelvis.