Yesterday while hiking there were clouds of deer flys, black flys, mosquitoes, and midges buzzing around my head (I am in the US, don't know what you have in the UK) all wanting to suck my blood...
If someone were to invent an ultrasonic device to drive biting insects away they would make a fortune!
If someone were to invent an ultrasonic device to drive biting insects away they would make a fortune!
