<ais523> ` printf \'#include <stdio.h>\\nint main(void) { float C = 4.0; printf("%%f", C/C++); }\' | gcc -fno-diagnostics-color -Wall -Wextra -x c /dev/stdin

PK is short for Phil Katz, an infamous player killer of the 1990s whose favorite method of attack was to deflate his enemies.