Well, what I think is up is that you are making a distinction without a difference as an argument for using test-tube zygotes for experiments and treatments.
"I've clearly indicated that I'm speaking of zygotes that have passed beyond viability. They are eventually sloughed off in the regular menstrual cycle."
Who in the world is capturing post-viable zygotes sloughed off in the regular menstrual cycle?
"Does that mean I can't discuss the realities of drugs with kids without coming across as an advocate of drug abuse?"
Given how you've been doing w/ zygotes, I would say no you can't.
Dan, you’re just being silly now.
That is the trouble with trying to have a serious discussion. We have all kinds of mind-readers out there who are also negative thinkers. First, they pretend to know what you’re thinking despite what you say, and second, they always assume the worst.
I can’t help you. You’ll have to climb out of that one with the help of the Lord.