Perhaps there will come a day when you will find a slug on the floor of a building. If you are like most people, you will want to remove the slug. And also if you are like most people, you won't want to touch the slug or otherwise interact with it. Here is a simple method for removing the slug without making contact with it.
1) Place an empty jar or other open-mouthed container over the slug.
2) Wait a half an hour to an hour, and the slug will slide up the inside surface of the jar.
3) Pick up the jar and place it on the ground outside.
4) In another hour or so, the slug will have slid back out of the jar and into the surrounding environment.
(Needless to say, the container used for this should be one which you wouldn't mind coming into contact with a slug and its associated slime.)
In case anyone is unclear on how this method works, I have included two low-quality computer drawings illustrating a slug moving from the floor to the inside of a jar, viewed from the side.
I came up with this method by accident many years ago, when I found a slug on the floor. I didn't know what to do about it, so I put a jar over the slug to keep it from going anywhere, and then went away, intending to figure out how to deal with it later. (I have a tendency to put off dealing with my problems, which usually makes them worse.) When I came back, I found to my surprise that the slug had gone up inside the jar.