Desmond Peskowitz, 7, of Takoma Park, Md., pours a stream of water on his head from his boot, Tuesday, March 17, 2020, with his mother Kathleen Caulfield, and sister Erin Peskowitz, 4, in Rock Creek Park in Washington. Desmond's school is closed due to coronavirus precautions, and his mother said the park was their "PE class" today. Jacquelyn Martin/AP Photo