Working with live wires

So, I have been working quite late recently and I have been keen to get into the workshop and finish off the work required so I can install all the new tools I have bought over The last 6 months or so, at the weekend I laid new cables for power outlets, one it would appear I had wrapped around the leg of a large workbench, which I tried to move last night into its new position.
Trying to drag the bench I noticed some resistance and then noticed the cable aound the leg, however it was above the lower shelf and in between the second one so to move the bench I needed to disconnect the mains cable, this I did as light was failing, by the time it came foe me to reconnect the mains it was too dark, and no lights to switch on I was now stuffed, and as I am working late again this evening I have no chance of rectifying it until tomorrow evening, bugger, I wont do that again, LOL.
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The workshop up until yesterday’s little cock up was going well, and I am excited about some of the antique hand tools I have purchased, I will restore these before I start work on my first guitar, which will be a Bass guitar, followed by a guitar of my own design.
I don’t intend this to be a business, however I will take on the odd commission for something custom if the fancy takes me.