Sinking is usually unplanned  ... even in the EU [actual emergency radio call transcript below]

 

"Mayday, mayday, mayday"

 

"Zis iz zee German coast guard Vhat iz your emergency"

 

"We are sinking"

 

"Vhat are you sinking about?"

 

 

 

Jaxson:

 

Bottom line is you probably stand a better chance of survival if you don't fall into the cold water in the first place.  ie don't sink to start with.