If someone other than your employer contributed to the accident — the owner or general contractor of a site, a subcontractor from another trade, the driver who hit your work van, the manufacturer of the machine that injured you — that is a separate lawsuit for pain and suffering, which comp does not pay at all. The comp carrier will have a lien on that recovery, and negotiating the lien down is a substantial part of the value of a well-handled case. Several of this firm's published recoveries arose from workplace injuries handled this way, including $2,800,000 for a truck driver injured loading a truck and $150,000 for a warehouse worker struck by a hi-low.