Do not use in microwave.
Trans-Eurasian Canal: Phase 1
Project Ploughshare.
Well, that’s a bit harsh. “Sorry, I forgot what I was mad about. Never mind.”
"Dodge this."
From The Matrix.
“fragile”
Fra-gee-le…hmmm, it must be Italian.
Sorry, but you started it.
“Someone set us up the bomb”
“Nuclear Warhead, handle with care”
=====
“Love, American style”
Acme corp.
Our town, Our country:
Dear valued customer…
Do Not Taunt
My favourites.
Ninja’d - bastard 
-
Return to Sender
-
Knock, knock… Who’s there?.. Interrupting cow.
“Don’t Panic”
“PS: Don’t bother with your towel.”
Non-returnable.
Have a nice day.
"…And I moved across the face of the darkness and said…
“Let there be light!”
Reach Out And Touch Someone.
Will You Be My Valentine?
Well, there’s always Kubrick’s first choices, although you could always just go with a classic.
Personally, I might go with: Nemo me impune lacessit.
For the love of God, Montresor!