Is it acceptable to discuss rates with other contractors working at the same client?

[sal]

I don't care to know the rate of other contractors at my current client, nor do i care to share mine with them.

I'm OK to share my rate with friends, who are also contractors when we compare notes about the state of the market.

The only situation where I would discuss my rate at the office is if I suspect the agency is shafting me hard (+20% margin) and want some bargaining power on renewal. In that case I will try to tactfully approach the subject with the person signing my timesheets.

[churchillsnip]

If I were finishing the contract at the same time, might discuss it during the last day beers. Only to get a sense of market value, and whether I'm pitching myself at the right rate.