Guys is fast becoming a generic term for people of all genders. Example of US English creeping in over here. And yes, I am easily led:-P

From the compact OED -

guy1

• noun 1 informal a man. 2 (guys) N. Amer. informal people of either sex. 3 Brit. a figure representing the Catholic conspirator Guy Fawkes, burnt on a bonfire on 5 November to commemorate a plot to blow up Parliament in 1605.

guy2

• noun a rope or line fixed to the ground to secure a tent.

• verb secure with a guy or guys.

— ORIGIN probably Low German.

Covers a multitude of sins:-)

So, Ted, what are you denying being? A catholic conspirator, a tent rope or a person of either sex? :-D

Cheers

D.