oh noes!
since we're from abroad, we're not inclined to drink tap water... and I myself hate drinking water. I've had problems in the past with perfectly drinkable water from Florida and California. I don't know why but my body just seems to reject it

I was planning on getting a sports plastic bottle with diet coke in it. I'm on a strict diet and I can't drink normal coke or cola drinks.
The plastic bottle is opaque, you can't see what's inside unless you get the lid off. Will the security staff turn that away? will they take a sip to see if it's water or not?

I guess I'll leave the bottle at the hotel but it amuses me to think what they would do if I show up with the bottle XD
oh and a dumb question if you don't mind. I might not even consider the bottle thing if
Disneyland offers refillable mugs. Do they?
thanks!