“A brick could be used as a key to unlock a door disguised as a brick wall. The security in the lock lies not with a one-of-a-kind key, but with a key that looks like hundreds of other potential keys that make up the door.
”

“A brick is a good object to hide a house key under. No burglar will be able to get to your key, especially if you hide it under the first brick the mason’s lay when constructing your house. 
”

“Keys, they make it easier to get in and out of doors. So does invisibility.”

“A brick could be used to ascertain the truth. And then logically, a non-brick could be used to detect the lie. What kind of things are non-bricks? Well, anything from blankets to lies. So therefore, a lie could be used to detect a lie, and all this logic makes me want to grab a blanket and lie down—and that’s the truth. 
”

“One brick is not a wall. Unless you’re an ant, and then it’s not only a wall, it’s a building—a building that has no doors, windows, or people in the form of managers that I’d like to smash in the face with a building (or a brick).
”

“I was hoping you’d leave the back door open for me, I said as he turned around to bend over and pick up his key.”

“A brick could be used to keep thieves away from your house. Just set a brick outside your front door, and you won’t need any additional security. Years will go by and nobody will steal the brick. And because the brick won’t get stolen, it’s proof that it deterred thieves from approaching your property.
”