#1 - Headcanon - Onity's fear of water

So Onity has a fear of open bodies of water and drowning. When they go to the pool or beach, he never joins tyler or Mike in the water. In fact, he keeps an eye on them in worry while in the shade.
He also gets really uncomfortable when taking baths or showers, as water feels strange to him, which means that Tyler and Mike have to bribe him. Sometimes they'll promise to make his favorite meal or go out to a movie and sometimes they end up having no other choice but to stay in there with Onity.