A certain set of skills

Mental Health

"There are a number of things I don't know," he said into the telephone, his voice dripping with menace just as his sandwich had dripped with mustard and mayonnaise. "And a number of things I don't have, including my sandwich. But what I do have is a general range of competencies, and I will probably be able to locate you. And when I do, I will mess you up good and proper, and I will get my sandwich back."