Haha, 1930's house with failing steel supply pipes and un-grounded outlets. Man, I've gotten good with the drywall patching! For small holes, like 1" - 2", I keep a roll of fiberglass mesh tape around - wad it up with some drywall mud and cram it in the hole; when it gets a bit stiff it makes a good backing to fill the hole up, a lot faster than tiny patches or trying to build up a glob on a ceiling (where gravity likes to F with ya!)