code: function(tick) {
  			var list = this._tempname.handlers[tick.type];
  			if (list) {
  				list.slice().forEach(function(handler) {
  					handler.ontick(tick);
  				});
  			}
  		}
docs: Tick now.
  TODO: figure out how destructed spirits should
  behave while we loop through handlers
  @param {gui.Tick} tick