Good idea! If you ask people to ask you to do things you should definitely not do, it may get you into the habit of saying 'no'. Examples, cause it's funny:

• "Hey would you come over and cook dinner for my cat?"
• "Would you give me 5 bucks?"
• "Would you tie my shoe for me?"
• "Go over there and kiss that stranger."
• "Give me a piggy back ride."

You can ask people to make their requests more or less ridiculous so you feel like you want to say yes against your better judgment.