horrible advice. there's no where on earth this will be accepted and defeats the OP's requirement of being employed WHILE validating an idea. 1. would get you sued
High risk of failure, high risk of litigation if we took your questionable anecdotes without any proof at face value and suggest to OP to do the same.
This is especially true for large companies with people who are hired to handle litigation and IP risk management.
How would discussing your contract with your employer get you sued?