Dear Cat, the food on the plate is mine. Me pushing you away & saying 'shoo' would be your clue that I am not sharing right now.
Nate..
says
Aw
I have to shoo her, she would take the food from my hand before it got to my mouth 
while purring loudly to distract me 
lol yes, I say sho
shoo
along with 'bugger off' 'noooo' & 'get off'
i've shoo-d animals too.