From: Sjoerd Hardeman on
>> That is some part of the problem. Note that next
>> year, I will make people sign. I think that in a > 18 yr. world with
>> engineering students, students should be more responsible about their
>> duty/ies.
>
> In open source world, it is not so uncommom to make people who wants to
> participate in some aspects of sensitive developing (i.e. fsf) to sign
> and agree with their terms, regardless the age of the developers (if they
> are young, they parents have to agree). That is the only way to protect
> (free) the code.

Signing a contract is not even necessary. Just start the text with:
"This document is the intellectual property of Merciadri Luca. It is
provided for review only. Any form of sharing or redistributing is now
allowed. In the case of unauthorized use will be prosecuted. If you do
not agree with these terms, please close the document and delete the file".
In that case, by reading and okaying you'll probably be just as safe as
signed contracts. Especially since your copyright is implicit: you have
to explicitly waive your copyright to allow others to share your document.
Of course, faxing signatures and contracts around might make a more
"serious" impression.

Sjoerd