Fractional Negotiations

Pocket: What better way to cap off an outing than with a sundae on a sundae?
Denim: Agreed, sir. Do you mind if I take the cherry?
Pocket: What? You want to take the cherry that caps off our sundae-on-a-sundae?
Denim: I'll let you have half-of-my-half of the whipped cream.
Pocket: Let me get this straight. You propose to give me half-of-your-half--
Denim: Just say yes, sir, please?
Pocket: As long as I also get an additional spoonful of hot fudge.
Denim: You drive a hard bargain, sir.
Pocket: I'm a Dalek. What do you expect?