I do the same thing more or less. My rats are in my snake room so I can't pre-scent the room for feeding day. I at least take out the water dish (I had a snake constrict and fall right under the water once-that freaked me out a bit), sometimes the hide as well, close the tub, do the same thing for all the other tubs, then I drop the f/t food in. What they really need is some sort of routine so they know it's time to eat IMO. Everyone does it differently, but this is the way I do it and it works great for me. I've never been tagged because they thought I was food. I have had several attempts at my hand from my het with an attitude!