i have latches that include the carabiners that screw shut. it takes many turns of the screw to open the carabiner enough to get it over the latch which can then be opened the normal way. i've see a lot of people say if a toddler/2 year old can open it, so can a raccoon. no way my 2 year old can open these. anybody had experience that proves me wrong with this typs latch/carabiner combo and raccoons?