I was once in a small toy shop in Scarborough...
when a woman walked in and asked the kindly old lady behind the counter if she sold swimming rings. The old lady (who must have been around 70) looked slightly shocked at the request and informed the would be customer that it was "not that kind of establishment and to try the place just down the road."

Now at this point I had just passed quite a large selection of swimming rings, so realizing that there must be some confusion I of course did what anybody would do in that situation.

I hid and watched.

The rest of the conversation is permanently imbued on my brain to the point where it still occasionally makes me laugh at random moments. It went like this:

Customer: But you're a toy shop

Little old woman: Yes dear, but we only do children's toys. The place down the road is very good though.

Customer: What?

Little old woman: Oh yes. Me and my husband are there all the time. They do all sorts of things like what you're after. I was wanting one too, but Frank says the ceiling wouldn't be strong enough in our bedroom.

Customer: Sorry, what are you talking about? I just want a swimming ring for my son

At this point the old lady went bright red with embarrassment, and said quite possibly the greatest two sentences I have ever heard uttered by a pensioner.

"Oh...swimming rings. I thought you said Rimming Swings"
( Furness, Thu 28 Aug 2014, 23:31, 4 replies)

goodness
had me guessing to the very end
( ferret -> twitter.com/syfyautocorrect <-, Fri 29 Aug 2014, 0:20, closed)

If this is true it has won hands down.
(chovnik, Fri 29 Aug 2014, 10:04, closed)

Classic
If true this can only deserve an award
(raith50, Fri 29 Aug 2014, 10:32, closed)

Doesn't matter if it is true.
It is funny.
(eViLegion Chief Commissioner of the Scottish Lunacy Board, Fri 29 Aug 2014, 10:53, closed)

Brain damage is well lol!
Almost as much as unfunny yarns.
( monster munch person, man, woman... camera... TV?, Fri 29 Aug 2014, 13:39, closed)