EE FELT BURNING SENSATION TO BOTTOM OF [L] FOOT WHILE WORKING ON THE PRESS FLOOR AT ABOUT 2:30 P.M. EE CHECKED BOOT AND SOCK, BUT DID NOT NOTICE ANYTHING. WHEN EE GOT HOME HE NOTICED A HOLE AND BLACK AREA [DIME SIZE] TO [L] FOOT HEEL. EE FOUND 2 STAPLES IMBEDDED IN BOTTOM OF BOOT, CAUSING PRONGS TO POKE THE BOTTOM OF HIS FOOT. EE WAS PLACED ON RESTRICTED DUTY ON 02/04/2008.