When Batman and Robin were about to purchase a car from Honest Al's Used Car Dealer, Batman tells him they should check to make sure the vehicle is safe first. Robin then says: "Holy Ralph Nader!" Ralph Nader also appeared in a commercial informing the public to "know your Kryptonite." He informed the public about certain things to observe when purchasing kryptonite, and when such things are not observed, you should take your business elsewhere.