Someone asks you to co-sign a loan. How to reject & say “no” nicely or politely?
No, I don't mix business and personal affairs.
Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
Someone asks you to co-sign a loan. How to reject & say “no” nicely or politely?

### Response:
No, I don't mix business and personal affairs.