Background
Mal-MD ('Mal' frequently thought to be short for 'malfunctional') believes himself to be a one-armed 2-1B series medical droid. Anyone with eyes can see the falseness of these claims, but those who have humored him long enough know these delusions are warranted in some sense by his diagnostic skills and more.
Motivation
Expertise - Mal finds immense value in medicinal skill and wishes to hone his craft to cure any ailment he may come across.
Obligations
(15) Nullicaine addiction - Mal experiences phantom pains in his left arm that only the spray-on anesthetic nullicaine can soothe. One canister a day leaves a dull ache and affects his mood. Two canisters keeps him functional.
(5) Diagnostic obsession - Mal often gets caught up trying to solve medical cases rather than focus on the tasks at hand. He once broke into the house of an ill rodian to sedate him and biopsy his equivalent of a liver. After two days he mailed him the appropriate treatment anonymously with a detailed note of how he got infected by a kath hound tick from his dance partner at a recent trip to the local cantina.
Description
A fairly well maintained B1 battle droid with the exception of faint carbon scoring on the front of his chest. The storage compartment on his back has a red medic's cross painted in the center. Along with miscellaneous items, it contains the bulkier parts of his integrated medpac, along with an old hand-held mediscanner that is attached to the side with a magnet.
Despite his belief of missing his right arm, it seemingly functions perfectly fine. Mal dismisses any mention of this as him being exceptionally skilled at performing tasks with his remaining hand.