It's not exactly "Presidents Gone Wild!" but for the normally staid Group of Eight Summit, a video of President George W. Bush sidling behind German Chancellor Angela Merkel and delivering an impromptu neck rub is, well, as wild as it gets. The scene, captured by a Russian TV camera, hit the Internet like a summer wildfire Tuesday, and it may be most memorable for the German chancellor's reaction. Bush applies his hands to Merkel's shoulders and neck while she's speaking with Italian Prime Minister Romano Prodi; the chancellor hunches her shoulders, then throws her hands up to stop the unexpected...