I was walking into work today and came around a corner to find a homeless person standing on the curb. I shifted my direction to maintain a safe distance and the guy turned and spoke.
"Hey, ya' know what my father always used to say to me? He'd say, "If you want peace, prepare for war."
I nodded and kept moving.
Igitur qui desiderat pacem, praeparet bellum
--Publius Flavius Vegetius Renatus