User talk:Rus boi

October 2009
Welcome to Wikipedia. The recent edit you made to the page Collision domain has been reverted, as it appears to be unconstructive. Use the sandbox for testing; if you believe the edit was constructive, please ensure that you provide an informative edit summary. You may also wish to read the introduction to editing. Thank you.  Anna Lincoln  14:21, 6 October 2009 (UTC)