Omg what a blast, I'm so glad I went! :)
I bailed on my knees like 3 times the first loop around the rink though cuz I was wearing actually roller skates (bad idea) so my knees are turning all sorts of funky colours today.
But S and R and A pulled me up and once I got roller blades it was like 10x better and I didn't fall at all :)
Yay for 70s roller skating (except actually blading :p) I'll bring G one of these days...