Yup, one of them didn’t work. I figured my luck can’t be that bad for such a high failure rate so i did something daft and dismantled the non-working one. Testing a few of the bits i came to the conclusion that it was the bulb which was shot not the actually zapper bit. I left the working one in the nippers room to see if i could catch any of the lazy suckers but none of them seemed interested. Obviously British flies are somewhat smarter than the ones in the pixar film (i forget which one but there is a scene with two flies and one is drifting towards the zapper and the other is screaming about not going into the light) as none of them seemed to be interested in being electrocuted.
So back i went with these two on Sunday and got a refund. I’m now going to employ a little WW1 tactics and use a can of Raid as chemical warfare would work better than technological trickery. I just don’t fancy clearing the corpses up at the end.