chit-chat effect

You start talking about stuff that, you really shouldn't be talking about, to someone or a group of people, because everyone's being really social and talkative

"... Yeah i've been really busy too, helping move our classified FBI data centre" "wow really? Where to?" "Ah you know, the good 'ol san francisco" "... Wow that's really interesting. You probably shouldn't have told me though. If it weren't for all this talking, you never would have suffered from the chit-chat effect!"