goggles or glasses help because they do squirt.
keep your mouth closed and don't wipe yournose eyes or mouth when doing these.
I just fraggeed some last week using an exacto knife. I thought that I totally ruined them, but they began to open the next day.
My first zoanthid frags and they are doing very well. If I can do it, anyone can. I used the info from zoaid.com. Very informative and step by step. I give 4 stars!!!