Thanks, GrreatTeacher and Hairtrigger, for your replies.
http://www.grammar-monster.com/glossary/subjunctive_mood.htm
Hope the above information helps, GT. The subjunctive -- expressing desire, uncertainty, importance, etc. -- is less employed today, certainly in conversation. Re: the hypothetical scenarios you referred to, I will look further. Did you read specifically about hypothetical situations and non-use of that verb form? Use of the subjunctive indicates what may be contrary to fact [hypothetical?], nevertheless, wished for by the protagonist. I insist that you not worry!!!
You're quite a match for Nancy, HT!
Thanks again.
CC