Why would someone try to spook a..

Brief：
last night someone deliberatly threw a packet of firecrackers into my outdoor arena as i was riding (it was a driveby). this caused my horse to spook .. 

last night someone deliberatly threw a packet of firecrackers into my outdoor arena as i was riding (it was a driveby). this caused my horse to spook bad. i fell and fractured 5 vertebra. why on earth would someone think thats funny or cute?

because people are cruel. its a fact of life, unfortunately. hope your horse is ok. i wish you a speedy recovery. maybe they did it because you were mean to someone, so they were paying you back well peaple are mean and please answer my dog question ill make you best answer -_- maybe there trying to threatning u!

I hate that when they do that :( u should tell them to stop

or give them one warning. if they do it again call the polices. because people are morons. I have a freind who used to live on a main road with her horses and they got harassed all the time. Because they're mindless jerks and only care about themselves and looking cool in front of their friends. I feel so sorry for you, my brother does it all the time just with water not firecrackers. Those people just don't care about who or what they hurt. are you ok? You're lucky you aren't paralyzed.

I hope you called the cops. some people are just sick and ignorant. The think it's funny to make fun of or abuse animals or other human beings who they consider weak or inferior to them

They may or may not have considered the act would hurt the animal or the rider, and worse yet, they may not care. Because people who don't know about horses find these things amusing. They don't understand how dangerous it is.