private void removeMember(Member member) {
    // If the contact was just added during this session, remove it from the list of
    // members to add
    if (mListMembersToAdd.contains(member)) {
      mListMembersToAdd.remove(member);
    } else {
      // Otherwise this contact was already part of the existing list of contacts,
      // so we need to do a content provider deletion operation
      mListMembersToRemove.add(member);
    }
    // In either case, update the UI so the contact is no longer in the list of
    // members
    mListToDisplay.remove(member);
    mMemberListAdapter.notifyDataSetChanged();

    // Update the autocomplete adapter so the contact can get suggested again
    mAutoCompleteAdapter.removeMember(member.getContactId());
  }