Phoebe Buffay 's actor Lisa Kudrow said in 2014 that it is her favorite '' Friends '' episode , for several reasons . She said " number one was it was the first show we shot after 9/11 . And that whole week , while driving in LA , people would pull up and give me a very sad look and a quiet ' thank you ' for making them laugh "
9/11
September 11 attacks
The One with the Halloween Party