I think no one of you have experienced the worst nightmare in slot machines yet, not in financial terms but in terms of spinning more than 600 spins without winning the bonus round at Swords and Holy Grail when usually the max spins before winning the bonus round is less than 300.This was my last experiment I was playing with minimum bet 0.10 Eur and lost about 60 Eur before the Swords fall on the screen and it joked around me by giving the 5 Kings a mere 5 Eur win.
I will never forget those 600 spins in my entire life and I have said many times I will quit,but now I don't have any reason to play anymore as in less than 1.5 hour it swallowed 60 Eur with a min bet at 0.10 Eur.My conclusion is now firm,slots are controlled by evil software and I suggest you stay away from them.