Depends on who I ask. There is one person who I would tell anything to and trust it to stay 'between us', and several that I wouldn't trust with the knowledge that I have a pimple for fear that it would be spread around the world in less than a week.

As far as I'm concerned, forever...or until such time as I'm released from the confidence.

About 10 seconds.

I almost never say that. I just assume people know they shouldn't tell other people important things I tell them, cause I can recognize what kind of information should not be spread.

I don't even bother saying it much anymore. Most people can't be trusted no further than you can see them anyway. As sure as you say don't....they will.. :)

I never say anything to anyone that needs kept between us. I'd rather keep it to myself.

Forever till I tell someone else my biz.

"Show me a good loser and I'll show you a loser"

I only say that to people I trust

Around SW not very long.

Not too long. I rarely use that phrase unless I am drunk.