However, circumstances occasionally necessitated fighting at night. Cost overruns at all three experimental cemeteries necessitated some adjustments. Her injuries necessitated six separate reconstructive surgeries. Maldonado was unhurt but the damage the car sustained necessitated its retirement. Chronic ill health necessitated her eventual retirement from acting in 1992. However, increasing world metal prices necessitated a change of composition. Besides Theology and Philosophy, frequent debates and discussions necessitated competence in Logic. The work necessitated detours for four years. The reconstruction also necessitated the relocation of 410 families on Park Row. Economic policy leading to independence would have necessitated loosening trade links with the US. This necessitated an emergency patch to major browsers. Beginning in 1917, walnut shortages necessitated the use of beech wood. These unspecified repairs could have necessitated a spacewalk, likely performed by Ross and Shepherd. By 1664, increased demand for water necessitated additional sources. This necessitated another round of negotiations and concessions.