Dunno how I came up with this silly one. Still it's a poem though

Whatever you do,
Just make sure you don't end up to do,
Land on Voldemort's front door.
Cause he'll just Avada Kedavra you!

No matter how the weather is,
Or what your point is,
He'll never listen to you.
Cause hey, he's the Lord of Death.

Slashing through the fear,
And floating on your hope,
You won't even have a chance to look.
Yeah, you've got Kedavra right on you!

Don't ever try a strategy,
He'll know it before you do,
Even Merlin can't save you.
Avada Kedavra, is only a mercy on you.