[Rokkrwolf]

As stated by Intelli in another as you read you have alternatives. You can make the roof lower so they can't jump on them, along with blocking the area in entirely and putting a roof above it or in it's own room. As far as making it bannable it technically already is, if a player happens to do it once maybe not but if they repeat the offence and you have proof said player will be banned.

Rejected.