def foo
  #...
  raise EX[:critical, :alert_user] # if ...
  # ...
end

def bar
  begin
    foo
  rescue EX[:critical]
    puts "Releasing resources"
    raise
  end
end

begin
  bar
rescue EX[:alert_user] => e
  puts "=" * 80
  puts "Bad news:"
  puts e.backtrace
  puts "=" * 80
end
# >> Releasing resources
# >> ================================================================================
# >> Bad news:
# >> -:30:in `foo'
# >> -:36:in `bar'
# >> -:44
# >> ================================================================================