I was just looking at this level I have. One of its selling points is "High Impact plastic frame is unbreakable with normal use".
Now, for those of you who have never used a level, here's how you normally use one. You take the level (which is basically a flat stick with a little see through tube full of some kind of liquid with an air bubble in it) and place it against a surface that you want to be level. Then, by viewing the air bubble in the tube and making sure it is inbetween the lines drawn on the tube, you can see if your surface is level. If not, then adjust the surface until it is level. Easy, eh?
I don't want to see the levels that are designed so that they break during normal use. Like, you set the level on the surface and *BOOM*, all of a sudden it explodes, sending shrapnel into your eyes and gonads. The liquid in the plastic then starts to leak out onto your skin... then begins to eat through it like acid... because it is acid. Then, just when you think the pain cannot get any worse, angry spirits of the Native Americans who's property your ancestors stole are released from within the level and they get inside your head and cause you to do horrible things to yourself. Like have sex with Cher or something.
Good thing my level is unbreakable with normal use. I wouldn't want that to happen.