@Trolley_Problem @cynblogger @randahl @MontyRunner

Lots, depending on the state and likelihood of state violence.
Certainly water, high calorie snacks, maybe a burner phone loaded with key phone numbers & emails (emergency contacts, attorney,...) instead of your regular phone with lots of sensitive data.
Warm layers of clothing (more or less depending on where you live.
Government ID, medical insurance, a bit of cash, 1 credit card (or not ID if you want to make it difficult for the man).

@CarolynStirling @randahl @Trolley_Problem @cynblogger @MontyRunner

Milk for tear gas. Thanks for the prompt.