       sourceName : klass.name
       as         : $in  : as
       timestamp  : $gte : greater
+      targetName : $ne : "CFolloweeBucketActivity"
     }
 
     matcher.sourceId = $nin : nin  if nin

        if missing > 0
          existingIds = instances.map (i) -> i._id
          existingIds = nin.concat existingIds  if nin

          klass.some {sourceId: $nin : existingIds}, {limit:missing}, (err, randomInstances)->
            instances = instances.concat randomInstances  unless err
            queue.next()
        else


  @fetchRandomUsers = (callback)-> JAccount.some {}, {limit:10}, callback

  @fetchRandomTopics = (callback)->
    {select: selector} = nameMapping.topic
    JTag.some selector, {limit:10}, callback

  @_fetchUsers = (options={}, callback)->
    {client}   = options
