I understood what you were trying to say. Another one that I’ve seen that proves people aren’t quite smart enough to figure these things for themselves is one time I saw a jar of peanuts and on the label it said “Warning. May Contain Nuts.” DUH!!!
Going through my other comics and Pearls has a mention along with a cameo by everyone’s favourite rat. http://www.gocomics.com/thebigpicture/2016/07/10
Like the Blazing Saddles reference.