we lived on the East Coast, so Roller Derby was just a TV thing. we had wrastlin' in our area. We did the same type stuff, had one cat who would dress like a manager ( fedora, crazy sport coat, and shorts)...he's go down to the ring area and yell at guys....he got taken away as well.....funny thing is he still has the hat....
Went 1 time and I went as a blind guy (dark glasses and my bud was holding my elbow).....when everyone would start yelling and standing towards the ring, I'd stand up, but purposefully turn a bit toward people next to us and yell obscenities at them.....they turned me by my shoulders and pointed me towards the ring.....slap me on the back and laugh......
