Blue Peter Host Gethin Jones did a behind the scenes spot for Dr. Who. He took a turn getting into the Cyber Man costume. As the costumer is at Gethin's feet putting on his boots, he asks Gethin if his feet are ticklish. Gethin says they are and the guy quickly proceeds to tickle Gethin's foot before he puts the boot on him. Gethin squirms and laughs and tells him to stop. Then he says, "Oh man! I can't handle my feet being tickled!" It's about 2:28 minutes into the show.
http://www.bbc.co.uk/doctorwho/news/cult/news/drwho/2006/05/15/32179.shtml
http://www.bbc.co.uk/doctorwho/news/cult/news/drwho/2006/05/15/32179.shtml