Of course, it's not too tricky to configure, say, Apache to block access to all the .svn directories:
http://www.subversionary.org/martintomes/preventing-access-t... http://blog.samdevore.com/archives/2006/05/01/hivelogic-prev...
http://www.subversionary.org/martintomes/preventing-access-t... http://blog.samdevore.com/archives/2006/05/01/hivelogic-prev...
The ideal way is to not take the risk in the first place. You can't forget something you don't have to do.