First round of Penang Open and my phone actually rang! I put it in silent mode bu there is this sleep app that actually set of it's alarm off even in silent mode.
Anyway I was near the stage I put the phone down it too me a few seconds to dismantle the bac and pull off the battery. Surprised when I noticed nobody heard the sound (or they pretended not to hear). Perhaps it also helped that the sound was some strange nature sounds and not the common alarm sounds you hear. So I guess I was fortunate. The last time this happened, I got banned from the tournament hall (I remember it was the one Hou Yi Fan came to Malaysia and win).