Tower - take off abandoned. Nearly had a cock on my chopper. Or rather two cocks on my aircraft's chopper.......
Landing our wonderful but very old Vickers Funbus one night, a fox nipped across the runway narrowly missing us: "Tower, be advised that there's a fox on the runway - and it's probably a few pounds lighter than when it started to cross" "Why - have you hit it?" they asked. "No - but I rather feel that it might have jettisoned some of its cargo on the way across!"
Another time: "Tower, have the bird scarers been out? Because there's a flock of a lot of them down by the threshold of 26!!"