A responsible applicant
Employer to applicant: "In this job we need someone who is responsible." Applicant: "I'm the one you want. On my last job, every timeanything went wrong, they said I was responsible."

A man phones a mental hospital and asks the receptionist...
A man phones a mental hospital and asks the receptionist if there is anybody in room 27. She goes and checks, and comesback to the phone, telling him No, the room is empty. "Good," says the man. "That means I must have really escaped."