Wouldn't it be wonderful to have a TESTFIELD message readable for human beings?

I as a developer love those messages because they tell me what and where the problem is, but for users is kind of unreadable.

I suggest an overload for TESTFIELD method, something like:

Customer.TESTFIELD(Address,'The customer %1 needs to have populated field %2')

In bold, the new overload... we developers can throw the error message understandable for the user, and Microsoft should do a very serious revision on all error messages they through... Some of them are cryptographic.