Mosquitos and Spitfires

Usually I spend my time 320 feet up. The mosquitos cannot reach me. They might try but the evening swallows swoop and gobble them. Then the myriad numbers of bats relish their taste and dash about like that guy from Gotham City. The windows are closed while the aircon hums but just maybe one will get in.... they never have. I plugged in the electronic zapper and added the blue tablet; I gave up and have never been bitten by a bllodthirsty Chinese vampire fly.   Until now !  This past fortnight