S5·E10 Lucy and John Wayne

When Mr. Mooney sends Lucy to the movie studio to deliver some papers regarding the financing on John Wayne's new film, she ignores his warning not to bother Mr. Wayne and finds herself lunching with him. Nervous and excited, Lucy proceeds to talk his ear off and finally splatters him with ketchup. Mr. Wayne takes that as his exit cue, but Lucy soon tracks him to the set of his film, where she continuously screws up the production.