 Most of the cartoons Barbera and Hanna created revolved around close friendship or partnership ; this theme is evident with Fred and Barney , Tom & Jerry , Scooby and Shaggy , The Jetson family and Yogi & Boo @-@ Boo . These may have been a reflection of the close business friendship and partnership that Barbera and Hanna shared for over 60 years . Professionally , they balanced each other 's strengths and weaknesses very well , but Barbera and Hanna travelled in completely different social circles . Hanna 's circle of personal friends primarily included other animators ; Barbera socialized with Hollywood celebrities — Zsa Zsa Gabor was a frequent visitor to his house . Their division of work roles complemented each other but they rarely talked outside of work since Hanna was interested in the outdoors and Barbera liked beaches and good food and drink . Nevertheless , in their long partnership , in which they worked with over 2000 animated characters , Barbera and Hanna rarely exchanged a cross word . Barbera said : " We understood each other perfectly , and each of us had deep respect for the other 's work . " Hanna once said that Barbera could " capture mood and expression in a quick sketch better than anyone I 've ever known . " 
