Dave Arquati wrote:

I did once meet a couple of Imperial students on the Circle line on
their way from Gloucester Road to High St Ken... having walked from
Imperial to Gloucester Road to catch the Tube because they didn't know
the way to Kensington High St on foot! Some scientists have no common
sense...

Funnily enough, in all the years I've been travelling to IC (mostly, as
last night, for the express purpose of consumption of intoxicating
liquor...), I've still never learnt the route from HSK to the Union Bar.
Which I suspect would have been quicker than waiting 5 minutes for a
Circle line train, and walking up from Gloucester Road...