Mole deterrent

Just the one small molehill this morning. Maybe the solar powered ultrasonic mole deterrent I bought from the Outiror mobile lorry shop on Wednesday is working. I have been gassing moles with smoke cartridges. Some days it's just one or two but the other day I used a marathon seven. I think my obsession has got so bad it is rubbing off on the children staying in the gites. The last few mornings they have come running up to me with cries of 'Ian, Ian we've found another mole hill. Can we kill it please, please'.