I have a 2 switch switch, it controls 2 different lights. When one is turned on it sparks and trips the circuit breaker. I disconnected the lite and wire nutted the wires and closed off the outside lite box. I replaced the switch but it still sparks and trips the breaker. I cut the wire going to that lite flush and wire nutted it and used electrical tape. I then put it back in the plastic wall box, reclosed everything the 2nd lite works. Is this safe since the wire I wire nutted is a hot wire?