I suggest you get off my roof before I ignite your frilly, red pants
A loud, angry warning to someone who’s trespassing on your roof, and you’re not afraid to burn their fancy pants to ash.
Your neighbor is currently standing on your roof like it’s a trampoline. You throw a match at them and yell this.
You see a kid trying to sneak into your house through the roof. You light a cigarette and say this.
Your friend’s dog is on your roof eating your shingles. You throw a flaming sock at them and say this.