I think it's a thing actually on campus.
"
GW's River Horse
Legend has it that the Potomac was once home to these wondrous beasts. George and Martha Washington are even said to have watched them cavort in the river shallows from the porch of their beloved Mount Vernon on summer evenings. Credited with enhancing the fertility of the plantation, the Washingtons believed the hippopotamuses brought them good luck, and children on the estate often attempted to lure the creatures close enough to the shore to touch a nose for good luck.
So, too, many generations of students of The George Washington University.
Art for wisdom, Science for joy, Politics for beauty, And a Hippo for hope."
Visit reports, news, maps, directions and info on George Washington's Hippo in Washington, DC.
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Less random than it seems.