Part 1/ 2... or 3. idk yet

So, after The Stanchurian Candidate, I decided to experiment a bit with this new character.
-Minor Spoilers-

Tad Strange is ironically the most normal person in Gravity Falls. "Why is that?" Dipper once asked.

Tad replied. "The supernatural and I have a mutual avoidance, I suppose."

After further exploration, what will they find about Tad Strange? Is he normal? Or is he... a tad strange?