If the enemy has just entered my inner sanctum:
"Hello Duckiling" *Attack him*
If we've stumbled upon eachother by chance:
"Shall we get lunch first? I'd hate for you to die on an empty stomach"
If I've just entered his inner sanctum:
"Hello Duckling" *Attack him*
If he's delivered his speech before me:
"Sorry, could you repeeat that? I was with you up until "You killed my sister" and spent the rest of it thinking about her rack"
If it appears as though he's genuinely going to win:
"Well, it's been a good run. You've left me with only one means of escape and I'm down to my last 6 distractions. If we meet again, I'll be on a tropical island enjoying my retirement but if we don't make it that far, you'll find my PIN written down in my upper right pocket. Buy yourself something nice" *Runs... Really, really fast*