My SIL uses the 2x2s...LOL, I didn't know this was such a common thing!! I took my niece to the bathroom over the summer at a local amusement park, she's 3 and has gone to a few parks now since being potty trained, but that was my 1st with her out at a park. Well, my SIL neglected to tell me about her EPIC fear of the automatic flushers!!! Of course my 5 year old nephew joined us so I had him in the small dirty stall dropping his pants babbling about a roller coaster and my niece almost peeing her pants screaming at the top of her lungs about me "holding the toilet!!" ????? Finally my nephew explained to me that she wouldn't get on the pot cuz she wanted me to put my hand over the sensor so it wouldn't flush and make a loud noise.....there were no sensors on these toilets, she's just that terrified of all public toilets that my SIL puts post-its on all toilets, sensor or not!!
I can imagine all you Disney mothers have Post-its in your purses