A tradition that’s been around for over 100 years: Don’t step on the zodiac at the Memorial Union, or you’ll fail your next exam. Architect William T. Proudfoot designed the infamous zodiac to match the Greek style of the Memorial Union. Proudfoot’s intent was for it to be worn down over time as students walked over it, but only a year after installing it, students had already become superstitious about the zodiac. For the age of the piece, it’…