The first Turkish chatbot named “Doğukan ” created for MSN messenger using Visual Basic 6.0.
It had an Microsoft Access database where I matched different word combinations with automated responses and dialogs.
I asked a question on a development forum about a specific type of query, a troll responded with a command to clean the whole database. I trusted the query & executed it. All data was gone. Did not train it again. A lesson was learnt that day.