Use this code when you want to be sure it happens

gistfile1.cs

        /// <summary>
        /// Use this to make sure A is set
        /// </summary>
        public int A
        {
            set
            {
                try
                {
                    lock (lockObj)
                    {
                        a = value; // try it

                        a = value; // again, just to be sure
                        
                        a = value; // third time's a charm

                        if (a != value) // did it work?
                        {
                            a = value;
                        }

                        while (a != value) // ok, now brute force it
                        {
                            a = value;
                        }
                    }
                }
                catch  // cosmic rays most probably
                {
                    a = value;
                }
                finally
                {
                    a = value;  
                }
            }

            get
            {
                return a;
            }
        }

" It's this kind of this forward planning that means bug-free code! "

https://twitter.com/Gavoir/status/420874528810872832

" You can never be too careful. Those cosmic rays can really mess up your day otherwise. "

https://twitter.com/sdarlington/status/420872054100221952