The craziest thing I've seen in a newspaper lately

From the NYT story on the Somali pirates who are holding 25 members of an oil transport ship hostage:

Once pirates get aboard, however, the ship is theirs, because crews on commercial vessels are rarely armed, according to Mr. Choong and other maritime experts. “They are not mentally or physically fit enough to handle weapons,” he said.

I guess the mental part goes without saying, but not physically fit to hold guns?