Student 1
Your sibling usually takes your favorite clothes. You don´t like it because you care about your things very much, wear different perfumes and don´t like the smell of smoke on them. You have decided to speak with him/her about it openly and are not ready to make any compromises. 

Student 2
Your sibling has great clothes which are well-cared for. Any time you need something special, you borrow it form him/her. You feel that your sibling doesn´t like it but each time he/she needs your help with Math and Physics you are ready to help. Make a compromise in order to solve the problem in the family.