Hey, I will trade you for a pizza from Giovanetti's.
Most incidents are not a result of a system on MEL but several and then the loss of an additional item in flight or lack of adherence to the MEL requirements. It is the PIC's responsibility to ensure that proper MEL's are applied and their operational requirements are adhered to proir to flight. The PIC may also reject an aircraft in most MEL's if there are conflicting ones that he feels deem an aircraft un airworthy, this is often a case when flying into known weather conditions etc.