A naval boiler stoker goes to Hell. The Devil comes up to him on the first day, and sees him smiling.

"What are you so happy about?" says Lucifer.

"I just love it here. It’s like a spring day in the boiler room."

The Devil walks off angry, and decides to get him. "I'll turn the heat all the way up. That'll show him."

The next day, The Devil checks back with our hero, only to find him happy once again.

"What now?" says the Evil one.

"This heat is great! Reminds me of a summer day in the boiler room."

The Devil realises that he has been going about it all wrong.

"Tomorrow I'm going to make it colder than a Siberian winter."

He returns the next day to find the stoker shivering and blue, but grinning from ear to ear.

"What could you possibly have to be happy about?"

"It's pretty obvious, isn't it?" replied the stoker. "Hull City must have won the Premier League!"