Midnight Snacks & Pooing

Hi, everyone, I am a newcomer from Japan. My 6-month old shorthair is
not fixed yet but will pretty soon, and he is having this tenacious
habit of getting up in the middle of the night to snack on feeder and
then gives me this smelly poo souvenir. Since he is shifting into the
6th months and will be fixed and all, I guess that he will tone down a
bit but if anybody is experienced with kittens, please let me know
whether or not it is normal. I used to have a very good cat for 18
years before him and he was not that wild.

:-) I shall be waiting for your inputs, guys!

Meow!