Weta No 2

I haven't been out much, Ollie has sore knees and refuses to go out for a walk and we have builders in again, the final bathroom !
One of them lifted up a pottery 'shell' sitting on the rail of the deck and found this weta underneath. They look quite vicious, with antenna almost twice as long as their bodies, but are quite harmless, I think.
Someone please correct me if I am wrong !