I happened to be in court when I noticed a wrinkled old lady with grey hair sat up high...
I asked her, "You mind if I ask how old you are?"
She shouted back, "Thirty, love!"
I thought she was just messing with me so I replied, "No, really, how old are you?"
She yelled at me, "Forty, love!"
I realised then I should get back to my tennis match.