Many exchanges tend to use euphemisms such as 'locking', freezing' or 'suspending' when they steal or take the users' money hostage.
How far would you go if an exchange has taken your funds as a hostage?
What behavior from the exchange would result in you calling your "last resort"?
https://bitcointalk.org/index.php?topic=5304720.msg56231039#msg56231039
People are accusing exchanges all the time with stealing money, in 99.9% of the cases it’s not true.
On the one hand, some exchanges would steal your money.
On the other hand, many users would steal money from the exchange.
"Refund services" are popular between hackers and their clients.
Haven't your money ever been frozen?