Pete was sitting at home one evening when the doorbell rang. He opened the door to see a 6-foot-tall cockroach standing on his doorstep. The cockroach punched Pete between the eyes and scampered off.

The next evening, Pete was sitting at home wen the doorbell rang. When he answered the door, the cockroach was there yet again. This time, he hit Pete in the stomach and karate chopped him on the back before running away.

The third evening, Pete as again sitting at home when he heard the doorbell. He answered the door and for the third time the cockroach was there. It leapt at him and managed to stab him several times before running off.

The gravely injured Pete was barely able to crawl to the telephone and summon an ambulance. He was rushed to intensive care, where they saved his life.

The next morning, the doctor was doing his rounds. He stopped by Pete's hospital room and asked him what happened. Pete explained about the 6-foot-tall cockroach's attacks, culminating in the near-fatal stabbing.

The doctor looked thoughtful for a moment and said, "Yes, there's a nasty bug going around!"