Bennett had a good natured give-and-take relationship with What's My Line? host John Daly, both men teasing each other about their habits, backgrounds, and behaviors. One running pun Bennett would usually make whenever a guest would sign in as 'Mr. X' would be to say that Mr. Daly and the guest were 'Ham & X' (Ham and eggs)
Whenever Bennett Cerf wrote an original work, he would have it published by rival publishing house Doubleday because he felt if he published them himself his Random House authors would feel he was putting his interests in front of theirs.
A Bennett Cerf pun: Did you hear that a major Alaskian town is banning all puppies from its city limits? The town will be now known as dogless Fairbanks.