Running method while destroying the object

Question

A few days ago my friend told me about the situation, they had in their project. Someone decided, that it would be good to destroy the object of NotVerySafeClass

Answer 1

Simple answer: no.

Somewhat longer answer: you could guard each and every member function and the destructor in your class with a mutex... welcome to deadlock opportunities and performance nightmares.

Gather a mob and beat some design sense into the 'someone' who thought parallel destruction was a good idea :)