dont think u should worry about getting mugged or raped - the club is situated very close to trafalgar (as well as all the u-ground stations) and not only is this a well-lit area... as you'll find out when u leave the club at 5-6am there is shit loads of people already a) up and about
b) taxi people trying to fuck u off with steep taxi fares
c) grebos
d) 1500 other clubbers...
e) other clubs also finishing around london at this time.

i've travelled down from birmingham over 5 times already this year... and not even had trouble once, not even been asked for money by beggars, despite waiting around euston or the area around euston waiting for the station to open.

Crasher's event runs till 6... so if u stop till the end then trains will already be running from euston (they start @ 5:20)... (i am guessing u coming from north if it takes 2 1/2 hours by train!

Certainly not coming for fear of rape is a bit harsh!