A disappointed Malaysian

I am a Malaysian who lives abroad for many years and did my routine summer vacation back to Malaysia at 2011. So,I was fated to fly with MAS last year and flew Dublin-Heatrow-KL. Our flight from Dublin was delayed and as a result we missed our MAS flight from Heatrow-KL. So we were placed in a hotel 15mins away from the airport and was assured we will be placed on the waiting list for the next day's flight. Next morning, our Q for the waiting list was so long, and this is 4 hours prior to departure. I was lucky enough to get the last ticket out to fly home and walked with relief to the gate where the flight will depart in 15minutes. Upon arrival to my gate, my name was called out and they 'sadly' informed me that I can't fly home because they overbooked??!! But I have my boarding pass on my hands (you freakin' idiots!!). I was trying to defend my ticket but the MAS girls gave me the 'serves-you-right' look. I was never rude, I was just explaining my position but they treated me like a garbage(Heathrow crew). I couldn't bear the thoughts of not going home with my boarding pass on my hands and literally had tears in my eyes. It was the most non-pleasant experience I had so far, regrettably with MAS airlines, which we supposedly proud of. All I can say is -this bad service definately explains MAS economy crisis and staffs cuts. Grrrr...