Freeze an entity?

How can I freeze an entity? I spawn it but players can pounch it and its falling down then.

Edit:
ent:SetMoveType(MOVETYPE_NONE) :wink:
Thanks everyone :stuck_out_tongue:

http://wiki.garrysmod.com/?title=Entity.GetPhysicsObject - You need to retrieve the physics object from the entity first.

http://wiki.garrysmod.com/?title=PhysObj.EnableMotion - Then with the PhysObj freeze it.