Classic stoner

Couple days ago, I went to a friend's house and lit up while how parents were there. I only took one gb hit but that shit got me fucked. It was the highest I've ever been. Usually, I don't get red eyes but that time I couldn't see any white in my eyes. Couple hours later, I drove home still at about an 8 and talked to my mom for 15 straight minutes. My eyes were still red as fuck because we didn't have eyedrops but my mom never asked me why. I then go in the kitchen, take some leftover soup and put cereal in it to satisfy my munchies. My mom just had a wtf look on her face and so I offered her some. Her reaction was that's gross and she just went away after that. I have no idea how my brain pulled that off and how my mom didn't notice how red my eyes were