I have nothing against ferrets, but ferrets should not be asking me "Can you confirm you are over 21?" when I am quite clearly well past!
Just to clarify, they have to ask
everyone, including the elderly. One day they asked my 50-something mum. She said, "actually I'm only 16, but I've lead a tough life."
The girl behind the counter literally didn't know what to do. Her little laminated card with bullet points on didn't cover this eventuality and she went into meltdown...
So when these idiots make a mistake I can benefit from, I'm taking it! One day, they actually will be robots and mistakes will be far fewer. Make hay! Unless the person is intelligent and friendly, then I'll mention it... honest.