Typically legal highs are either dangerous, digusting and/or time consuming to use. Or maybe they are just quasi-legal like Salvia.
Does not include alcohol or caffeine.
DXM (Cough Syrup) - disgusting/time consuming
Salvia - quasi-legal
Morning Glory Seeds - time consuming
Laughing Gas - quasi-legal
Benadryl/Dramamine - Dangerous and not really that fun either.
Having Someone Hold Your Nose and Mouth Shut So You Cant Not Breathe and Results In Some Kinda High - Dangerous and kinda stupid. The author has never heard anyone attempt this.
Theres some other shit too. They are either some kinda inhalent or just bullshit.