• I understand that you may feel like this is not your responsibility, however, I would greatly appreciate it if you could help me with this issue.
• I realize that this may not be part of your job description, but I would be very grateful if you could assist me with this problem.
• I'm aware that this isn't normally something you would do, but can you please help me out?
• This might not be in your job description, but I really need your help with this issue.
• I know you may not feel like this is your responsibility, but I would really appreciate your assistance with this problem.
• Remember the rules young grasshopper: company is not family, your boss is not your friend, HR is there to protect the company not you.