var foo = {
  bar: function(x) {
    x.squeeze();
  }
};

// this call will break your application :)
// opps, TypeError: Object 42 has no method 'squeeze' :)
foo.bar(42);

var errHandler = function(obj, meth, args, err) {
  alert(["error invoking method on object: ", obj, ", method: ", meth, ", ",args,", err : ", err].join(" "));
}

contain(foo, errHandler);

// this call's errors will now be managed, oh snap
foo.bar(42);