I never actually got to this one...
Friend texted me to ask if me, DH and DC wanted to come over for dinner. Except that she didn't, she accidentally texted a colleague of hers with the same first name, not someone she knew well enough to have over for a meal.
However, the colleague texted back that she would love to come. Friend replied asking who she would be bringing, colleague texted it would just be her and John. Now, John is not the name of my DH, but friend assumed it was just a weird predictive text thing and planned dinner, inviting two other couples we knew.
On the day, they are having drinks in the garden when colleague and husband turn up, of course she has no idea why they are here, and makes awkward conversation until her DH twigs and starts mouthing behind their backs "It's the wrong Chihuahua!"
Now, I think I would have had to have come clean and had a laugh about it, but they didn't want to admit there had been a mistake, so the couples that knew each other and these poor not-really-invited people had a meal in what must have been a bit of an odd atmosphere, especially at first.
Friends are convinced that the colleage and her DH wouldn't have noticed anything amiss, but if I'd turned up for dinner and been met with blank, uncomprehending looks, I would have thought something was a bit off...