I did for several years, everyone got used to it: spiked belt and spiked boots, purple John Lennon glasses and a stuffed Raven and various bovine bones in my cubicle along with some fake human skulls. But I kept it clean: kept my ponytail braided and no piercings, no eyeliner.
I can ninja up admirably when I have to. My piercing flips into my nose, my deathhawk was long enough to look like a normal shoulder length cut when worn down, and black jeans/slacks were the order of the day.