a way to disable /kill?

[Demanufacturer]

i swear i've heard of there being a cvar to disable the use of /kill - however i cant remember it, nor find it on any cvar lists!

does such a cvar exsist in etpro?

[sponge]

forcecvar kill ""

does it somewhat, however it is easily bypassable with /cmd kill :\

[Demanufacturer]

thanks