Rainier Wolfcastle is the teutonic, oak-like actor who plays the title character in the popular McBain movies. He once helped Homer Simpson to get in shape. Perhaps his finest moment, however, was in the following confrontation with film critic Jay Sherman:

Wolfcastle: You disrespected my movie. Prepare to die.
Sherman: Um... your shoes are untied!
Wolfcastle: From here they appear to be securely fastened, but I shall bend down to get a closer look.
Sherman scarpers. Day turns to night.
Wolfcastle: On closer inspection, these appear to be loafers.