Pictured: Susan happily deals with an intruder in her current lab of employment... With a crowbar...
The junk-crafted mechanical being known as Susan is primarily a lab assistant, as that is what she was programmed to be. Any sort of scientist is acceptable, though she tends to find herself helping out the mad variety. Of course, if given the proper directives and/or guidance, she could always look into other fields of employment...
Pictured: Susan examining some strange readings. This picture also serves as an excellent side view of the robot.