As title. I will start off with yesterday's daft booboo. Lighting fuse out, in pocket. stripped switch, PIR, and outside light prior to fitting new light.. croc clipped L/N of one cable to bell out as there were 2 cables in fitting, 2 in switch, 2 in PIR. identified cables. temp. different colour tape on ends of each. back to CU and replaced fuse with croc clip still across L/N. OOPS. and no spare 1361 for miles.