Sometimes there’s also just different interests in the same thing.

At some point I was waiting in line and wearing a Planet Express t-shirt. Someone passed by and made a math joke that I didn’t understand. I was confused for a few seconds then realized what I was wearing, replied that I wasn’t so much into math, and I just think electric mucus is an excellent choice for the colour of a ship. They seem a bit insulted and we quickly stopped exchanging plaisanteries.