"I agree" box before entering a forum

[SHOBizzy]

I asked this question over on vb.com but Steve said it would have to be done with a hack so here I am.

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I own an auto enthusiast forum. Currently we have one section where people discuss their street encounters. As stupid as that sounds, it's a very popular section. In any case, I have my rear end covered in the forum's TOS but I'd like to make that section private. I'll be using a secondary user group to do that rather than passwords and the section will be on an "invite only" basis.

Even after going through all that, I'd like to add a redirect of sorts (for lack of a better description) with a disclaimer in it that users will have to agree to before being redirected to the private forum. If they click "I agree" then they're redirected to the forum, if they select "I disagree" then they'll be returned back to the regular forum. Does that makes sense? Does this sound like anything someone here could do?