You university probably has a free legal clinic for students. I would suggest you check them out and get advice on the situation (as in if you can somehow get the money back by suing or involving police). I know you probably don't want to legally go after your parents, but it's good to know all of your options. And you can always try threatening them with suing/police involvement without actually following through. Just the threat might get them to take it seriously that they stole from you.

r/MenAndFemales

Shrooms are natural and therefore the dosage is completely unpredictable. He bought these shrooms from a new dealer so they absolutely could have been more potent than others he's bought. Or maybe all the past ones he bought from a previous dealer were super weak. Reality is that since its unregulated and if you're buying from different people, you will never know the true potency of the shrooms you're taking.

Also I've had super delayed shrooms trips because of eating them on a very full stomach. It takes longer to digest because of that. But I also agree with you that these shrooms could have been laced with something else. But I wouldn't discount the fact that these might have just been super strong shrooms.

From my experience that absolutely is an insane amount to take. The most I've ever seen someone do IRL is 6g and that was a lot for him. I personally have never gone higher than 3 and have found that overwhelming at times.

Obviously it's extreme, how can you possibly explain that experience you had and not see that it's extreme?

3g is definitely a high dose, especially if they are potent shrooms.