No it's not this man his dogs are very placid and he comes in the mornings , this other man and collies were afternoon visitors and as far as the park attendant is aware is a new dog walker to the park ?! I've been going with my dog every day for four and half years and never seen anyone fitting this discription . I really feel for serindipity1 as his other dog was attacked ( a very small dog) in bellenden only 3 weeks before nearly killing his dog . It's cost him over ?1000 in vet bills and left him with two very beautiful and sweet natured and scarred dogs ! Thank god they neather seem traumatised by these attacks