“Please note that we have added a consequence for failure. Any contact with the chamber floor will result in an 'unsatisfactory' mark on your official testing record, followed by death. Good luck!”
“Well done. Here are the test results: You are a horrible person. I'm serious, that's what it says: 'A horrible person.' We weren't even testing for that. Don't let that horrible-person thing discourage you. It's just a data point. If it makes you feel any better, science has now validated your birth mother's decision to abandon you on a doorstep.”
-- GLaDOS, Portal and Portal 2
For being an all-seeing AI with total control over your environment, GLaDOS sure is passive aggressive.