Pozzo, the subordinate who Zaphod gave Youssarian's(Yossarian) stolen millipede to, is actually Yossarian's son.
Shakespeare was actually bitten by a puff adder after Yossarian's burrow move, not beforehand as stated on the show.
Yossarian initiated a burrow move not because of a predator, but because the Whiskers had remained at the den for over five weeks. Food was becoming scarce and fleas were multiplying, increasing the chance of disease.
Tosca(Baddiel) was evicted during this time, she wasn't the babysitter who left "her own pup" lying in the dirt. It was in fact Kinkaju, who was simply confused.
Shakespeare was the only other babysitter present during Yossarian's attempted burrow move.