Beat The Wall2 What Is The Most Irregular Heart Beat You Have Had?

What is the most irregular heart beat you have had? - beat the wall2

For example, my heart was 120-160 in a few seconds while I was in the hospital, that is an important difference - and it was very irregular, I had an injection of non regluate. Another had a heart thats been very irregular?
Just wondered what the heart beats, as irreglar longer sure if the heart rate irregular wouldnt class as heart failure and die?