Possible Clues:

• Procrastinator's plaint
• 'I'm busy!' ... or, if read in four pieces, an aid in solving several clues here
• "Some other time!"
• ''I'm too busy to talk!''
• 'Some other time'
• 'Ask later'
• ''Ask me later''
• "This is a bad time"
• 'I'm working, OK?'
• 'Maybe another time'