synapses_removed_events.each do |ta|
      num_adds = synapses_added_events.where(eventable_id: ta.eventable_id).count
      num_removes = synapses_removed_events.where(eventable_id: ta.eventable_id).count
      if num_removes > num_adds && SynapsePolicy.new(user, ta.eventable).show?
        synapses_removed_to_include[ta.eventable_id] = ta