Another headcannon.

Grian usually takes Scar's hat, and Scar chases Grian until they both collapse. It's not an uncommon sight in the Shopping District to see them chasing each other, while laughing. Eventually Scar gets his hat back.

:̷̧̨̢̢̛̥̝͍̥̣͔̩̞̉̐̃̋̎̉̅̋̅̅̌̕͘)̴̧̢̨̧̛̫̥̺̯̣͙̯̹̞̫͔̩̘̮͙̯̠͚̖̟͈̗̻̳̠̭̪̻͖̫̰̙͖͙̩̹̦͚̙̤́̋͋͒̇́̑͌̍̾͆̈́̆̊̒̔̈́̿̓̆̿̔͋̋̀̐̔̅̄̿̄̓̐͆͋͂̍̓̄̅̇̃̏̄̉̿̌̄͂͑͋̄͌̀̓̌̿̉̀͊̎͂͒̈͘̕͝͝͝͠ͅͅ