You're not wrong. My nan died the other day, fucking guy didn't even take of his cap as they carried her through the kitchen to the backdoor. The box of Zatteran's at least bowed its head.
I need more details. Let's get to the bottom of this. How long had it been been since you arrived home? Were you standing or sitting down? Holding any drinks? How heavy is your backpack?
Yeah I feel like we're getting somewhere now. At first I was on OP's side, but now I'm imagining them like sitting on the sofa drinking a Diet Dr Pepper while watching Judge Judy reruns and half carrying on a conversation with their dad while wearing their backpack. Then after Judge Judy renders her verdict, dad is suddenly like "why are you wearing a backpack?" Then OP gets defensive and weird, and finally we find ourselves at the situation in the meme.
That would be pretty weird if if I did that. But in case anyone is curious, It was a few minutes after I had just gotten home from college and went inside the house and then went over to my dad to say hi before going to my room. He immediately asked me why I had my backpack on and I told him that I had just gotten back from college. It was at that moment he told me that wearing a backpack while talking to someone was weird. My Mom later walked in and asked what we were yelling about and she then started laughing because of how stupid the conversation was. I was standing the entire time we were arguing.
Is this a first time occurrence? Has there ever been any other indication of your dad's discomfort around people wearing backpacks? There might be some history here that you're not aware of. Some past bad experience he had. A kind of PTSD.
Ok maybe now he's on to something. Did you just like get home and start pacing around with your backpack on? At that point why would you still have your backpack on lol