Possible Clues:

• "And how is this surprising?"
• 'Must be a day ending in Y'
• York, Jersey, Mexico, etc.?
• ''This should surprise me?''
• *“Well, that’s unsurprising”
• 'You think I didn't already know that?'
• "Got other things going on?"
• ''How about something I haven't heard?''
• 'Why am I not surprised!'
• *'Why am I not surprised?'