system
A chat on subreddit /r/me_irl
human
I don't know what pizza place sells a 15" pizza when most do increments of 2", but I remember a trend where people would cut an inch out of the middle and claim they got cheated to try and scam free pizza out of places. The fact that the cut lines don't meet in the center but off to the side means that could be the case here too.
gpt
Some of those slices do look hella shady.