If, in your career, you've never had to rescue a server or backup media via means of a makeshift boat. You aint lived!
4 times in my career i've watching gleefully as my place of work has sunken beneath the waves of the various rivers of the UK. All of those businesses recovered with very little data loss. All of them continued operation and still operate today.
First rule of IT: Have you backed it up? Do you have 3 copies, in two locations, one offsite?
It's amazing how many people don't plan for the major disaster situations, fire, flood, earthquake, nuclear attack or even war.