I’ve been stuck doing only arena work for ages because my mare naps so bad. The second we start to even head out hacking she stops, rears and spins. She can do this at any point out hacking even when we are heading home with other horses on the hack too. She doesn’t care if she backs into an obstacle which is quite concerning considering there are many cattlegrids she could go onto and has even spun while a car is going past her. I feel that I have tried everything to fix her napping but nothing has worked, anyone got any ideas?