slow blink?, didnt hear this one before!
try locking eyes and NOT blinking, you will need to channel every last bit of malevolent evil you got, but the hissy fit is worth it!
or in exceptionaly high stress situations looking AT the cat(wild, ferral,10lb tom trapped in the porch), but not focusing on it's eyes, untill it tucks its head, step OVER it and open the outside door, and it bolts so fast it leaves a cartoon puff of hair.
the search for intelligent life in the universe should be looking around, not up.