Seems to me that the dummies swallowing those things should have sense enough to not do that. There are some things that just can’t be fixed to protect the less than intelligent from harming themselves.
There's an old saying, "Some people can learn from books, so from observing other people. But some people just have to pee on the electric fence for themselves."
Hopefully anyone who eats the laundry detergent is struck sterile or deal, to ensure they don't breed.
Mark