Is there an amount of money that if someone should owe you, and you won't be able to ask the person about it?

[Fidelia]

There are some amount of money that if someone owes you such amount, you won't be able to ask the person about it. You might even feel embarrassed asking someone about that kind of debts. Is there an amount of money that is so small that you can ask someone about it if they owe you that amount?

 

[Kross]

If you owe me just one dollar and you expect me to remind you about it, you simply don't want to pay me because I won't ask you about it.