I didn't like a lot of what Hart did in B.C.. Most of the time I thought it was heavy-handed, unfunny, at times delusional...if you read the strip (or the other strip that he wrote for, The Wizard of Id), you probably have your own opinions of the man and his work. Still, at times he was able to set all that aside and just be funny. Here's an example:
Rest in peace, Johnny Hart. When I think of you I will hear doomed ants screaming as they fall off a donut.