My script won't run if it is in a cloned part?

I have a game where at some point, I need to clone a "cough droplet" which can hover around and eventually get stuck to surfaces. Problem is, the script that I'm using to let it stick to things does not run AT ALL. The script is parented to the cough droplet, which is a regular base part. I put a print statement at the very beginning of the script, so that it would have to print something, but it didn't print, meaning that the script doesn't run. Does anybody know why or how?