Why do you say “female” but follow it with “men” instead of “male”? Makes you seem like an incel or some men’s rights nut job.

It sounds like you ate bad peanut butter. It should absolutely never taste bitter for any reason.

To be fair, people (on average) are a LOT worse at driving than a computer. I’d bet the percentage of humans driving into walls is much higher than self driving vehicles.

For what it’s worth you can easily buy test kits online. I use products from Bunk Police to test any substance I put into my body.