Kingsman: The Golden Circle

Eggsy patted the briefcase. “And this sets everything in motion to release the antidote. We get the access code, we can save the world.”
“Not trying to top you or anything,” Harry said, “but I just met Elton John.”

drugs… well, they help make life bearable for millions of people. Some of those drugs society approves of. Others, it doesn’t. Caffeine, nicotine, sugar… But in the end, they’re all the same. They’re medicine for the soul, Charlie. And that’s why I went into this business. Because the world needs someone like me. Every now and then, the world needs a break so it can keep going.

The reason he’d put Mr Pickle in here was because Kingsman trainees had to take their pups with them wherever they went and whatever they did—which included answering nature’s call. When the training period was over, and Harry took Mr Pickle home, there was no longer a need for the Yorkie to accompany him to the loo. But Mr Pickle would sit outside the closed door, whining and scratching at it until Harry relented and allowed him in. Thus, the bathroom became a symbol to Harry of Mr Pickle’s loyalty, of how the little dog wouldn’t allow any barrier to separate them. So after Mr Pickle died, Harry had his body preserved and placed it in the bathroom as a way of showing that not even death could separate the two of them.