Not sure exactly how a user doesn't know about a TABLE, but you could start to know more about everything by querying the system:
USE [sr_database]
GO
SELECT [object_id], [name], [column_id] FROM sys.columns WHERE [object_id] > 99 ORDER BY [name]
The return is most likely to be tables that the user created. Then use the [object_id] and cross reference things that'll return other stuff that the user created, names that might still be in his memory, etc. If the "default" value comes up, he'll say to himelf ... "aha!"