I can handle a T-Rex, but if they bring back velociraptors they will be gambling in the future of human's on this planet.
Interestingly enough, the velociraptors in Jurrasic Park were actually a different species that have a less-cool-sounding name. Velociraptors were only about 6 feet long (including the tail) and weighed about as much as a labrador retriever. With some selective breeding to weed out undesirable traits, they might make good pets.