McDonalds especially has been doing this since the 1950's The Shrek recall never should have happened in 2010 becuase such things have been known to them way before that.
In 2002, McDonald's recalled about 100,000 Chicago Bears bobblehead collectibles sold at 400 Chicago-area restaurants because of excessive levels of lead in the paint.
McDonald's announced Aug. 23, 2016, that the company was recalling fitness bands that it had put in Happy Meals because they might cause skin irritation or blistering on children. (U.S. Consumer Product Safety Commission)
McDonald's is recalling 29 million fitness wristbands distributed in Happy Meals after dozens of children reportedly developed skin irritations.
www. tvnews.vanderbilt.edu/broadcasts/253086
www. nytimes.com/1977/07/09/archives/dangerous-lead-content-reported-in-paint-on-mcdonalds-glasses.html
www. tamararubin.com/2019/03/mcdonalds-c-1980s-camp-snoopy-collection-glass-85100-ppm-lead-1827-ppm-cadmium-99-ppm-mercury/
hear is the lead testing lady's info on testing it for yourself www. tamararubin.com/2017/02/ask-tamara-q-can-i-test-my-dishes-for-lead-with-a-leadcheck-swab-a-sometimes-but-not-always-click-to-read-more/
This is not all but should demonstrate enough... while many companies have been doing this with more than enough information not to over the decades, watch the movie about McDonalds with Michael Keaton to understand why McDonalds has no problem to keep trying this in one form or another.