Little Red Riding Hood goes throught he woods and all that stuff, gets to Grandma's house, and the wolf is lying in bed disguised as Grandma.  
They go through all the eyes and ears and stuff until RRH says, "My Grandma, what big teeth you have!"

"All the better to gobble you up with my dear!"

And Red says, "Gobble, gobble, gobble!  Doesn't anyone fuck around here any more!?"