Harry forgot that:

Electrical appliances can be dangerous around water.

He should have remembered:

	To keep appliances a metre away from the shower stall and bathtub.
	To be careful when using any appliance around the bathroom.
	To use a G.F.C.I. whenever possible.

G.F.C.I. (Ground Fault Circuit Interrupter)

Designed to stop the flow of electricity should a fault occur in the cord or appliance. The interrupter can help prevent electrical shocks.