I think he had prerecorded the human nature part on his Fulltone Tube Tape Echo that he brought along.

Anyone know what guitar this is?
http://3.bp.blogspot.com/_ujWj4QJYo5I/Sm_5oqrXW6I/AAAAAAAAWVY/3lUeowVg20E/s1600-h/jm4.jpg

...or at least that's what my other personalities tell me.

blog.myspace.com/savinay

"May those who love us, love us. And those who don't love us - may God turn their hearts. And if He cannot turn their hearts, may he turn their ankles, so that we may know them by their limping." -- Bartender, keeping the faith