Porky's Picnic is a 1939 Warner Bros. Looney Tunes animated cartoon directed by Bob Clampett.
While they are walking they pass a window where Pinkie is asleep but overheard the conversations and decides to tag along.
As he tries to get back to sleep, Pinkie is about to strike again but Porky catches him and asks what he was about do with the wood plank.
Porky then grumpily lies on his side as Pinkie skips his way into the zoo, past a sleeping crocodile/alligator.
He gets out to grab a faint Petunia after putting down Pinkie, then they resume chase until they manage to get the cat stuck in the metal bars.