If you ride brakeless, what happens when your chain breaks? Has it ever happened to anyone?
Surely that is the reason you are supposed to have an alternative means of stoppage. "Always take one more safety measure than you think you will need."
Indeed
FootJam in the backwheel bmx stylee, safest option in that situation, I've had 2 chains snap on me in the last 8 months, one of them endured a whole winter of abuse and shit on the roads though, and the other was just a cheap shitty chain, that I shouldn't have bought, both times I managed to stop safely without incident.
Although i'll probably spend out on a decent track chain soon, when funds allow, maybe a nice izumi or something, and then actually bother to clean it when it gets covered in crap from bad weather.
I haz brakeless innit.