I was goofing around minecart inside minecraft and I was so bored that I want to see it go round and round non-stop but then something funny happen. Found out that if too many at once it can make nearby mobs jump in. I don't know how but this ended up. So funny to laugh that it happen. Why I did this? I was bored and want it to go round a circle non-stop. Not the normal circle. An awesome circle.