Team members destroying Team's stuff

I've play about 4 games now where one Team member destroys part of his/her own teams fort.  Is there anything we can do about these asshats?

Update: This is just getting out of hand now....

I'll look into seeing what I can do about this.

Edit: I've reduced how much damage players can do to props on their own team to around 10% of normal. Let me know if this helps.

Thanks.  Heading to the FW server as I type this.