It went by really quick, but it sure looks like they keep their fresh vegetables that Shino cooked up just loose in a kitchen drawer rather than their refrigerator. One of my favorite gags in this series is how Shino is constantly finding herself in compromising situations with Naoya.
Also, I moved a ton when I was a kid and went to a different school almost every year. So I sympathize with young Shino not trying to get too invested in making friends that are likely to be out of your life later on.
The crazy, over-the-top characters in this show is what makes it entertaining. At the end of the day, all that happened in this episode is Shino moved in and they had dinner. Without such extreme personalities in the mix, it would be exceptionally dull.