"I live in a small town in Canada up in the mountains, I'm not going to say where, for privacy reasons although I doubt anyone will try to stalk me down but anyway. We don't get many tourists here since it's not a very well known place, but lots of people from nearby cities and towns come in and visit and it's very clear who are tourist.I live on a lake, where tons of visitors come per day to swim in. You can tell someone is a tourist when they are walking around in the shallows carelessly. Locals would use the dock instead of entering the water by foot. Why? Leeches. Leeches are disgusting things that live in the mud in the shallow waters. Some are small, some are big, they look like slugs. I'm not going to insert a picture of one because they honestly are so disgusting. Not only do they look disgusting but they suck your blood, They can attach themselves to any part of your body and they are quite hard to remove. After the gross little thing sucks your blood you will then have a bleeding cut. Leeches suck your bad blood, and they are sometimes used for medical causes but ew. Most Tourists have no idea leeches exist until one attaches to one of their body parts."