I always go WTF when I lose a battle due to nothing but bad luck. I can be a really sore loser in such cases. Last week it happened again. I was battling a good friend via Battle Revolution, had him almost beat when his Snorlax used Bodyslam five times, each time another of my Pokémon was paralyzed (30 % chance) and two of my moves with a 85 % hit ratio missed in a row - and I was done for. Of course during the five times he had use Sleep Talk not a single time his Snorlax used Rest either, wasting the move - no, it was always Bodyslam that popped up. Twenty years ago I would have thrown the game controller god knows where in a complete rage.
But honestly, your bad luck is even worse. It's like playing a pen and paper RPG, rolling a 20-sided-dice and rolling five 1s (or 20s - whichever is the worst in your game) in a row. I know that the chances of rolling three in a row is one to several ten thousands ... but five?