The 'Rollover overspending' is an interesting and helpful tool and functionality for credit card transactions. However, it could be very dangerous for a user to continuously use that on unfunded or under funded transactions to their bank account. Although the software will tell them they are negative, the software should not allow someone to 'Rollover overspending' if it is a bank account. It puts the user at risk of over drawing their bank account balance and not realizing it.
