Today I reached this link and made an application for free T-Shirt, I entered all the required data into the web page and also submitted it.
So without further ado, click this <b>link</b>, fill out the form and you'll get your t-shirt within....
Form this page I clicked on this link "<b>link</b>".
In all this process I think there is an error, I have not logged in into sap site with my user name and password, so before it is accepted by the Site it should have asked me to log in and then save data after checking the user name and password. Now I have entered my personal info in it, can you make out from this info only that to which person it belongs to, so my user name should must be attached with it (I am fully confident that this info will not be leaked to any one, but some check must be there).
I am using Opera web browser.
Hope I am able to explain my point.