Do be careful with the nitrous! While it produces an extremely euphoric experience, you really need to be careful - especially in combination with other drugs - I say this from experience.
One of my high school buddies was a car enthusiast (aka "motorhead") who had nitrous injection for his vehicle. This is bad idea #1 - using non-medical grade stuff - who knows what other adulterants were in there. In any event, the experiences were a lot of fun - and also potentially dangerous if you aren't appropriately prepared. This stuff will pretty much incapacitate you and black you out - even if only for a few seconds - but that's when you can pass out and hit your head on hard objects, etc. (again - experience - I've done that

)
It's an interesting and very euphoric substance - I do like it, but always had that feeling "wow - this stuff probably isn't good for me" - maybe it's the hypoxia effect kicking in. I will say, that, even as a parent I've probably disappointed the kids by leaving them flat whipped cream after sucking up the nitrous as a kitchen whippet
Don't mean to be a doom and gloom person, but just want everyone to be safe and gain from their experiences without getting hurt. Do your research, be wise, and be safe. Moderation is always a good guide - be safe