Reminds of a tricky situation I was in a good few months back in D18 when my intended was delayed and I was trying to kill some time. Strolled in to a nearby shop and while standing in the queue the cheap phone I use on these occassions rings and stupidly I answer only to hear an excited female voice "I'M READY NOW YOU CAN COME OVER". The woman in the queue in front of me turns around, gives me a filthy look and I end strolling out of the shop mumbling my best in prov in to the phone, "eh sorry bad line, can't hear ya...eh I'll just go outside".

Moral of the story, NEVER answer your phone in close proximity to otherpeople or confined spaces etc etc.