I don't really like putting myself in any kind of box, unless it is dark, sound and toddler proof for about eight hours. (incultureparent.com)
Don't ever go to anyone's house that isn't toddler proofed. (simplymombailey.com)
(daycare / babysitter worthy for sure) I also found this style of applicator more toddler proof too (she finds it entertaining to stick her fingers in the tin style and «help»). (clothdiapercontests.com)