Historically speaking, guillotine

Young people don't call unless it's serious business.

Why she reacted like that while also knowing her dad still calls people? No idea

Imagine the arrogance required to think you can outsmart a powerful fey entity

Apartment or House?

Gout is just from a shitty diet at least

Brains.

Object wise? Probably Knives/blades. Used in Cooking, Killing, and Crafting.

A simple effective knife/blade can be created using stones and would likely be one of the initial things you'd want in a survival situation.

Boredom is often enough of a motivator, and nothing stops them from doing those things even though they don't need to.

He didn't specify what kind of immortality, so let's assume it's the kind where you don't have to worry about food, water, sleep, or dying

I suspect that's cause you're going for a Cockney accent.

Easier to get away with illegal activities though

Seems like the meat would just disappear.

Peck was a part of the EPA and had legitimate reasons to investigate them.

Venkman was a dick and didn't cooperate with Peck's investigation, so Peck got pissed and went nuclear on their ass cause he thought they were charlatans.

The guy who actually flipped the switch even told Peck he's never seen anything like that and didn't want to do it.