Certainly the amount of contact plays a roll. That's why dogs are so much higher than wolves for instance. But it's also true that most of the time people spe

Certainly the amount of contact plays a roll. That's why dogs are so much higher than wolves for instance. But it's also true that most of the time people spend swimming around sharks, they don't get bitten. How the ratio of attacks to contacts compares between sharks and dogs or other animals I don't know; agreed that would be somewhat interesting!