Erin: hey nick, could i borrow some money from you?
Nick: mmm, they say you should never lend money to your friends
Erin: why?
Nick: because it may ruin the friendship
Erin: that's nonsense. i'll pay you back
Nick: ok. how much do you need?
Erin: enough to buy a new pair of prada shoes
Nick: what for?
Erin: nothing specific, i was shopping online and saw them and fell in love with them right away
Nick: i thought the money was for an emergency or something important
Erin: shoes are important
Nick: mmm, no they are not
Erin: come on! does that mean you won't lend me the money?
Nick: sorry friend, i can't lend you money for shoes
Nick won't lend money to Erin for Prada shoes.