Hates jumping

Hates to Jump is a pet trait featured in The Sims 3: Pets. It's only available for horses. It's possible that it conflicts with the Nimble trait.

''Some horses prefer to keep their feet on the ground. If a horse does not jump like this then it will do less and do poorly at Spring tournaments and off-road races. Perhaps it makes even his anger out on your shiny new Spring obstacles!''