Neither do I but we're only 6 minutes away.
You're probably 45mins-1hr. You have the time to get your affairs in order. We'd be in complete disarray here!!😂.
Discussion
We do have experience though. 
Indeed. Fun fact. More people actually died, during The Blitz, of deep vein thrombosis, than actually died of bombs. The reason being, were sat, asleep, in deck-chairs, in The Underground for hours on end, resulting in fatal blood-clots!
Isn’t that just a normal day on the Northern Line?