Before the social dorm update, you could do things such as block corks with a stool and use your weapon as a last ditch effort to block a fired projectile that would disarm you.

Now after the Social Dorm Update, any fired projectile will go right through any held weapons; corks go right past stools and lasers just phase through the gun. Shields seem to be the only thing that can block projectiles now, and that's only in 2 quests.

The only thing that disarms players now is an explosion from an environmental source.