PSYCHOLOGIST Richard Wiseman’s taste for quirky science is well known, so his pet personality project should come as no surprise. In an online survey, he asked people to rate their pets for things like friendliness and neuroticism. Over half of fish owners said their watery friends had a good sense of humour. Fish apparently appreciate a joke more than cats, horses and birds – but not as much as dogs. Reptiles entirely fail to see the funny side of things, according to their owners.