Final answer:
There is no information in the provided text excerpts about a character named Inkling hiding from someone named Richman, so an accurate answer cannot be given based on the available details.
Step-by-step explanation:
The text provided does not contain information about a character named Inkling hiding from someone named Richman. Thus, it is not possible to determine where Inkling hid on their first trip outside of the house.
Without additional context, answering whether Inkling hid underneath the porch, inside a garbage can, behind a bush in the park, or in a drainage pipe near the playground from the excerpts given is not feasible.
The provided passages do not seem to correlate with the question asked.
To better assist, additional information or context regarding the story or characters mentioned in the question may be necessary.