You Know your DM needs a break when it's almost a TPK when fighting a 25th lvl lich/mage useing a selective antimagic shield (His own design, he can cast spells, but we can't).
You know your DM needs a break when the way you kill the lich above is that The lich hands you his Flackery(SP? its the thing that holds his soul) and a +3 mace, then turns his back and goes away.