Memory leaks in Grid.js ?

[sgodden]

I may be revealing my ignorance here, but doesn't code like this cause memory leaks when we destroy and re-create grids repeatedly?

listen(row, "click,keydown", function(event){
                // respond to click, space keypress, or enter keypress
                if(event.type == "click" || event.keyCode == 32 /* space bar */ || (!has("opera") && event.keyCode == 13) /* enter */){
                    var target = event.target,

The handler returned from dojo/on is not being stored anywhere, to be removed on destruction of the component.