Alums are still Full Members Of Your National.
But, if they come down and disrespect Your Local Chapter, then they can be asked to leave. We had this happen, and He was force fully taken out.
If an Alum Member is there, it is as a guest and should represent them selves as such.
Some times New Alums feel that they are still to close to The Active Chapter.
It is still again, if one person disrupts the proceedings, then something needs to be done. They will get over it as other Alums will say, Hey Bro. You Screwed Up).
Trashing a House, Well, maybe an ass whiping?

There is no reason for that at all. We all as GLOs who have Houses Pay for them! Many times as in My Situation, We as Alums Have been paying for it, so why should some ass screw it up?