User talk:Gringo47

April 2008
Welcome to Wikipedia. Although everyone is welcome to make constructive contributions to Wikipedia, at least one of your recent edits did not appear to be constructive and has been reverted or removed. Please use the sandbox for any test edits you would like to make, and take a look at the welcome page to learn more about contributing to this encyclopedia. Philip Trueman (talk) 18:37, 3 April 2008 (UTC)

October 2008
Welcome to Wikipedia. We invite everyone to contribute constructively to our encyclopedia. Take a look at the welcome page if you would like to learn more about contributing. However, unconstructive edits are considered vandalism and are immediately reverted. If you continue in this manner you may be blocked from editing without further warning. Please stop. Consider improving rather than damaging the work of others. - Mdsummermsw (talk) 15:08, 3 October 2008 (UTC)

April 2009
The next time you vandalise an article page on Wikipedia, as you did to Polymerase chain reaction, your editing privileges will be indefinitely blocked. Mind matrix  16:04, 29 April 2009 (UTC)