51.   While its potential benefits are huge, genetic engineering seems to conjure up images of mad scientists playing God, and has had difficulty winning public confidence.

52.   While its potential benefits are huge, genetic engineering seems to conjure up images of mad scientists playing God and has had difficulty winning public confidence.

53.   Yet the cliche of a mad scientist using machines to stimulate human consciousness no longer seems like pure science fiction.

54.   An invisible mad scientist beat a portly professor, a band of grumpy old astronauts and a bunch of babes on a bar.

55.   Despite its whiff of mad scientist run amok, this scenario is surprisingly close to reality.

56.   Such research, he said, might appear at first glance as an indulgent plaything, all expenses-paid, for a mad scientist.

57.   They are not mad scientists who stay up until the wee hours coming up with such legerdemain.

58.   To his dismay, he became typed in monster and mad scientist roles to the end of his career.