Haban's reference to "keeping bits" does not apply to his last gig with Thud Bongo, in which he was wrongly accused of keeping bits of the corpse of The Doctor he brought in. That accusation stemmed from the fact that in Doyt's early days he DID make a habit of keeping a piece or two of each captured bounty, and it was this reputation that led to the accusations that got him fired (and, by extension, into the current mess).