“When you give someone any kind of loan, you must not go into their house to get security.
You must be willing to share with them. You must lend them whatever they need.
That cloak might be their only protection against the cold when they lie down to sleep. If they call to me for help, I will listen because I am kind.
You might take their cloak to make sure they pay the money back, but you must give that cloak back to them before sunset.
You must stand outside. Then the person who you gave the loan to will bring out the security to you.
Maybe to guarantee loans you took things from people for no reason. Maybe you took a poor man’s clothes to make sure he paid you back.