Speak to your Home Insurance and Amp's Manufacturer.
I'm sure the Insurance will happily payout for electrical fires when a Fridge or another White Goods or the like has a malfunction that results in a fire, and there is plenty to suggest it has been cared for as the Manufacturer Suggests.
Taking advice of a forum on such matters of such unimportance can easily leave one without a home and no Insurance Payout to boot.
It is the individual holding the insurance policy, who has a responsibility to act in accordance with how the Insurance Company deems good practices are being followed. Unpaid claims are regularly found in conjunction with abnormal practices.
Leaving Laptops 'Permanently' Charging and then unattended, is known as a cause of fires in premises', the Insurance Companies are known not to pay out when this is a cause of a fire.
Today leaving a Laptop Permanent Charge, might not be considered abnormal to the regular user. Leaving it unattended whilst charging for a excessive period is probably normal for many.
