nixiesaurus:

James never wore his.  That was the thing about being the world’s only consulting criminal, although no one ever saw his face, he still could show no weaknesses.  Instead, he kept the ring in his jacket pocket.  He pointed out Holmes’ ‘Browning AR-15’, knowing that Holmes’ handgun was in his pocket, just as James’ was (although still referencing some perverse sexual comment, as a Browning AR-15 is a large assault rifle).  The two men were really just alike.

Sebastian never took his off.  That was the thing about living in the shadows, sneaking about through London back alleyways.  No one ever saw him, so when he was alone in some empty construction site or abandoned flat complex, he would hum ‘The Itsy Bitsy Spider’ while spinning the band on his finger.

Sebastian wore his to show James Moriarty owned him.

James Moriarty never wore his to show that protecting Sebastian was his priority.