This is not a game of who the f*ck are you

Picture this, you are walking down the street and your mobile rings:
"Good morning sir, this is XYZ bank calling you about some account irregularities"
"Aha, OK, sure"
"We just need to ask you some questions first to verify your identity"
#You've just called my number, you bloody well know who I am#
"No, no, wait a fecking second, I need to verify YOUR identity"
#Slight pause#
"Sorry sir we can't do that, maybe you would like to call us back on 12345678"
"Yeah, but that could be anyone's number"
#Silence#
"This hasn't happened to us before. I'll have to talk to a superior"

The End.

Courtesy of My Cousin Andy, who nearly gave the bank staff a mental breakdown.