A man goes into a sex shop and asks for the biggest dildo they have.
The assistant shows him a frighteningly large specimen.
"No ... no ... that won't do. Have you got anything bigger?"
The assistant browses through the shelves and finds one that is if anything even more huge.
"No, sorry, still not big enough. Is that it?"
The assistant says: "Well ... not out here in the shop ... let me go in the back and have a look in the stock room."
He comes back in a few moments with a truly terrifying specimen as big as a fire extinguisher. "Right: will that do?"
The man eyes it up and down and says: "Yes, that's the one. That'll do."
The assistant says: "Look, I know that this is absolutely none of my business, and you definitely don't have to answer ... but ... can I ask: what are you going to do with something this size?"
The man starts to unbutton his trousers. "I want you to ram it as far and as hard up my arse as you physically can. Earlier today I briefly considered voting Conservative and I just wanted to remind myself of what life will be like if they get in again."