Genevieve: Increasing costs have led commercial airlines to cut back on airplane maintenance  Also, reductions in public spending have led to air traffic control centers being underfunded and understaffed  For these and other reasons it is becoming quite unsafe to fly, and so one should avoid doing it
Harold: Your reasoning may be sound, but I can hardly accept your conclusion when you yourself have recently been flying on commercial airlines even more than before
Pat has shown me research that proves that eating raw green vegetables is very beneficial and that one should eat them daily, but I don't believe it, since she hardly ever eats raw green vegetables.