When plotting to cut off some dude's Johnson, research is everything. On trial yesterday on charges of killing her father and cutting off his penis, airport security guard Brigitte Harris, 28, told jurors she thoroughly searched the Internet for rod-cutting inspiration, finding Lorena Bobbitt's infamous attack on her husband particularly helpful. But before anyone calls for banning the Internet to save the penises, note that Harris's father allegedly molested her since the age of 3 (and her younger sister).