My sim drank the ghost goo and is now stuck as a ghost?!

"MsDupree;13620682" wrote:
I made 2 batches of ghost goo and gave each vial to a co-worker, but nothing happened. They didn't turn into ghosts. Can this serum only be used on the sim you are playing and the active household?

My sim used ghost goo on a co-worker and it worked, then they turned back to normal. My sim has also used slimify on other sims and it seemed to work on coworkers but at the retail shop it didn't.