Sebastian started out unlucky but turned in his favor big time.  His right eye was severely infected - just looking at it was alarming.  With the miracle of medicine and eye drops around the clock, his eye and sight have been restored.  The eye is slightly smaller than the left but all things considered, he is a very lucky boy.  Sebastian is the biggest of the bunch which matches his appetite.  That could be why he is also most playful.  When his energy runs out, he is out, snoozing (in your lap if you want) until it is time to romp again.