I've seen code like this:
IF ACCOUNT-MASTER-NUMBER NOT NUMERIC
OR ACCOUNT-MASTER-NUMBER = SPACES

OR ACCOUNT-MASTER-NUMBER = THIS-ACCOUNT-MASTER
THEN Its an ACCOUNT MASTER KEY
Now lets think about that for a minute...
That code says:
If the account number is junk, or is nothing, or by chance = another account number it's good....
That's just bizarre code!!!
And their systems are full of code like that.
They have no real input data to use, we had to invent it all!
The code we wrote, tested the input data, which is what the input programs are supposed to do.
The database code edited the database's data.
...so these people never heard of GARBAGE IN GARBAGE OUT.
Why didn't anyone take the time to get test data.
In my opinion, if a computer professional does things that perpetuates his job, he should be fired.
So, since none of those people are improving the system...they shouldn't be working on it.