Cisa gave Paris some stickers and apparently Paris gave Cisa waterborne illness. Yuck.

From Cisa: I just came back from Paris. Everything was great, until the French decided to poison me with their tap water. I suffered from stomach flu the whole damn time, it really spoiled the trip. I enjoyed sightseeing and all, but not as much as I would have if I was healthy. I didn’t put up nearly as much stuff as I wanted to, but putting up stickers was the last thing on my mind. I was too busy keeping my food inside lol.

- source peel magazine