OK!!! This is my personal take on the BROKE discussion..
It's kind of long, So bear with me...
Here is my suggestion.

BROKE_________________________________________
Break or need to repair/replace any of the following...

1.Block
2.Crank
3.Rod
4.Piston
5.Cam
6.Valve
7.Lifter
.Pushrod
9.Head
10.Any Bearing ie.Cam,Rod,Main,etc.
11.Basically any Internal Engine part


Here is what I consider not broke,I'll give a brief description as to why I think this..


NOT BROKE________________________________________

1.Break a Tranny, ie Clutch,Converter, Basically F'UP a Trans.. ( as long as you replace it with the same type trans, ie. an AOD with an AOD, Stick with a Stick, Etc.. NO change from Auto to Stick, C4 to Glide, Etc.. Or your BROKE)
2.Break an Axle or Rear End (Easy fix, and give a limit of say 10-14 days to make another pass.. Change Gear Ratio = Broke)
3.Head Gasket (Easy fix again)
4.Blown Intake
5.Burn a Plug
6.Blow a Belt
7.Blow a Hose
8.Radiator

I could keep going, But I think most will see my point.. I know some will instantly put down some of these ideas, But remember these are just my OPINIONS and I think it would be much better for any comments to be directed at suggestions/additions/deletions along these lines..

I think if we try to make the broke rule too simple it will create more drama..
Again just my opinion... But if we go with a "IF YOU CAN'T DRIVE IT HOME YOUR BROKE RULE" The problem could be for example is, BillyBob's alternator went out and he can't drive it home, So he is Broke!!!
Where some people may have the skills to look at changing a broke axle as easy, And do it just as fast.. So where do you draw the line ???
Again just my $.02