It seems that Fred Rogers wanted to meet Koko, the gorilla who was taught to communicate using American Sign Language. Koko had watched Mister Rogers on television. When they first encountered each other, the 280-pound gorilla instantly enfolded Fred Rogers, all 143 pounds of him, in a massive embrace.
And then? And then Koko took off Mister Rogers's shoes.
And then? And then Koko took off Mister Rogers's shoes.