<human>: My first time posting, so apologies for any formatting error.

Obligatory statement that this FU happened last year, when I was still in school.

Some background information - This occurred when I was on holidays at my dad's place. One of my dad's friend is a die-hard Christian - one of the most faithful men I know.
This happened when my dad's friend (let's call him Chris) asked me what my favourite subject at school was. Now, as you probably all know, there are multiple theories how the world was created. Now, I'd say I'm not the least bit religious, but I don't condone other people's beliefs. Thus, I said to Chris that my favourite subject was science.
At this point, Chris's smiling face turned into one of the most dirty looks I have ever seen. Not like a 'you kicked a puppy' look, but more of a 'you killed my family' look. Put off by his deathly stare, I try to justify myself by saying that science is my favourite subject because I liked to learn about how stuff actually worked, and how things ACTUALLY came about (I put emphasis on 'actually'). At his point, Chris says "Well, I hope you realize that they're WRONG."
This is where the FU finally occurred to me. However, being the socially awkward person I was, I sorta gave a forced, nervous laugh and we both sat in silence until Chris finally released me and moved onto the next room.

Provide a brief overview of the text.
<bot>: My dad's friend asked me what my favourite subject at school was, and I proceeded to unintentionally shit on his religion.