function bp_dtheme_activity_secondary_avatars( $action, $activity ) {
	switch ( $activity->component ) {
		case 'groups' :
		case 'friends' :
			// Only insert avatar if one exists
			if ( $secondary_avatar = bp_get_activity_secondary_avatar() ) {
				$reverse_content = strrev( $action );
				$position        = strpos( $reverse_content, 'a<' );
				$action          = substr_replace( $action, $secondary_avatar, -$position - 2, 0 );
			}
			break;
	}

	return $action;
}