Replying to Anyone try this?

I was thinking, and I once saw someone accidently hit a rail not under their boot, but they compensated balance wise and rode it for a bit. Admittedly it looked weird, but I could see how it could look cool if you managed to keep steady balance over the rail and go the whole way riding out on tips or tails. Has anyone tried this? I guess you could even do it off the edge of a box or something. Just wondering if anyone had any thoughts on this.