Hadn't really caught my attention until i stumbled over this fun read
and looked up some cream of the crop examples to verify. :-D

A day after Microsoft introduced an innocent Artificial Intelligence chat robot to Twitter
it has had to delete it after it transformed into an evil Hitler-loving, incestual sex-promoting,
'Bush did 9/11'-proclaiming robot. Developers at Microsoft created 'Tay', an AI modelled to
speak 'like a teen girl', in order to improve the customer service on their voice recognition software.

• article sauce: http://www.telegraph.co.uk/technology/2016/03/24/microsofts-teen-girl-ai-turns-into-a-hitler-loving-sex-robot-wit/
• some tv-channels coverage: https://youtu.be/vn6u45M6RFg
• a.i.'s homepage: https://tay.ai/

Id think they shut it down to fast ... unless those ~100.000 tweets / 24 hrs were enough to estimate where it was going to.
What do you think? Also feel free, to share the barely sfw tweets of it you've seen.

some of the tweets (click twice to maximize):

View attached image.