Does that make sense? Because otherwise, you're calling me an idiot/someone incapable of sharing his experience. And that's not nice, is it?
https://en.wikipedia.org/wiki/Out-of-body_experience
But it seems your interpretation (that OBE == religious experience) was actually what they meant and my interpretation was not, based on this comment: https://news.ycombinator.com/item?id=19588813
So, sorry for my misinterpretation.
Pushing them on this topic is mean because it's such a big deal to them, and it's counterproductive because you'll never be able to prove it to them. Even if you say something like "go through some sleep deprivation and see if you hallucinate" and then they do, you won't have proven that their previous experience was a hallucination. Instead, all you'll be doing is telling them that things they hold very deeply are all stupid, and never changing their mind. There is no positive effect from this, it's all just negative.