Until now, we have always assumed that Bob's adventure has him slinging a single Capsule under his arm. In a few places in the codebase, we have noted that this is not sensible and vowed (well, TODO'd) to do something about it. Some examples include retrieve(), generate_work_orders(), and WorkOrder.construct_by_bob().

These areas need to account for Bob having more than one (perhaps a huge sack full) of Capsules.