check out our:
"Wait a second – take the rest of your dough, too." I started giving her the rest of the dough she'd lent me."
"You keep it. Keep it for me," she said. Then she said right afterward – "Please."
That's depressing, when somebody says "please" to you. I mean if it's Phoebe or somebody. That depressed the hell out of me. But I put the dough back in my pocket. (25.79-81)
Phoebe is actually reaching out to Holden, not asking for a favor. It's depressing that she says "please," because she's the one doing him the favor.