Wow, I just dug into a query to troubleshoot.
Whatever you do, don't EVER just allow AND/OR precedence dictate condition grouping.
The subject line sample is ultra simple compared to what I'm having to decipher. In the case I'm looking at, I'm pretty sure that this one just slipped past me and I got really lucky that it still worked.
Anyone have an Ibuprofen?
;)