...I'm one of those folks who behave as though I'm the Lord...
Well, there are a lot of those folks out there.
...even though I know darn well I'm not...
This reduces the number of the first group to only a few, ok?

But now to your problem:
"delete this" in PostNcDestroy is absolutely perfect! There is a very good technical article about this topic in MSDN - every serious windows programmer should know.
See "TN017: Destroying Window Objects".