IT IS ALLEDGED WHEN EE WAS CLIMBING A LADDER TO FILL A DUST TRUCK, HIS RIGHT KNEE MADE A LOUD POPPING NOISE. APPROX. 1/2 HOUR LATER HIS KNEE WAS SWOLLEN. EE COMMENTED HE FELT LIKE LIQUID WAS G ATHERING AROUND THE KNEE CAP. EE SOUGHT MEDICAL ATTENTION: HAS APPT TO SEE ORTHOPEDIC DR ALSO.