[ A lot of it comes from him just not giving a damn about most things, though weather changes were really minor and handle-able honestly. Which was why he just shrugged his shoulders, eventually opening his eyes again to glance back up at the teen shortly. ]

I'd go with random, given how chaotic things have been around here.

[ That and his experience of being here this long has told him to not rely on anything like a 'pattern'. ]

Better than it being boring and dull. This just keeps things interesting.