President Nixon was worried about bird poop.
Before the 1973 inauguration, Richard Nixon noticed the many birds hanging out in the trees along Pennsylvania Avenue and feared that one or more of them might let loose as he passed below on the car trip from the Capitol to the White House.
The president reportedly ordered the 1973 Inauguration Committee to spray a chemical deterrent along the parade route. The Environmental Protection Agency called the substance "practically nontoxic." However, $13,000 of the sticky substance was applied far and wide...including onto the birds themselves.
It made the birds too heavy to fly and the parade route was lined with dead birds.
Not a good start to his troubled second term.