I thought I'd share my AngularJS talk because it has a few js bugs/features. Chrome allows you to call __lookupGetter__ in the context of window when called as a general function not as a member function.
There are also a load of getters now available on window such as event which leads to a sandbox escape.
Firefox allows you use __lookGetter__ to get caller no other browser does this. There are many more quirks explained in the talk and blog.