«For a long time I’ve wanted an ssh-agent setup that would ask me before every
use, so I could slightly more comfortably forward authentication over SSH
without worrying that my session might get hijacked somewhere at the remote end
(I often find myself wanting to pull authenticated git repos on remote hosts).
I’m at DebConf this week, which is an ideal time to dig further into these
things, so I did so today. As is often the case it turns out this is already
possible, if you know how.»
Someone once in the UK told me that it was a big enough problem that so many
people turn on their electric kettles during the endtitles of Eastenders,
that there's an employee in a hydro plant that needs to watch it to ramp up
the power at the right time. I've finally found a wikipedia page about it.