If you are working, a creditor can receive part of your pay once a month. This is called garnishment. Only one person can garnish your wages each month no matter how many people you owe money to. Before your wages are garnished, you must receive a notice. Yes, in some cases.
People sometimes put up something they own or are buying as collateral or security for a loan.
For example, when you borrow money to buy a car, the car you are buying is actually collateral and the creditor can repossess it if you do not make your payments. People often put up their household goods such as furniture as collateral for loans from finance companies, and their household goods can then be repossessed if they don't pay back the loan. There are severe restrictions on repossessing collateral which is not bought with the money from the loan. Creditors must act peacefully if they repossess anything. They cannot break into your garage or your house.