Anyway, do you remember that episode of the Simpsons where Homer has his beer cans wound around the power cable running over his garden (as you do) and climbs up to reach them. He can't get them off the cable but can flip the ring pull so a can's open. He then sees if he can drink the beer.
So at the last gig I picked up my trusty Rickenbacker 12 string and launched into the Byrds My Back Pages. As I started to sing the first few words I leaned into the mic and felt a shot of voltage buzz my lips. Doh! Following Homer's fine example I then kept singing, periodically sustaining shocks until I moved further from the mic and shouted louder.
I survived to write the blog and thought it was about time I tracked down the problem. It had been happening for about a year since we had the new PA desk, bought from Germany via Tinternet. We'd sort of got around the shock thing by putting those willy warmers on the mics (mine was wet with saliva, hence the shock) So today I thought I should concentrate on sorting it. The power lead from the desk was a two pin one which I'd used an adapter to fit our three pin plugs. "I wonder" I thought "if going from two to three plugs it's leaving the earth behind?" A quick visit to the excellent MORMusic shop and a chat to Lloyd and the answer was/is "Yes"

So just a matter of replacing the european plug with a trusty UK three pinned one. Picked up a plug, went home, took out my cable cutter and promptly cut the wrong end off the cable. Doh!
I had a spare UK power cable anyway so all sorted.
Next thing to concentrate on - making sure Ann's accordion has sufficient volume through the PA without causing howls of feedback

