That's hilarious!
I have the default lens on my canon digital rebel, and I really can't stand how it behaves indoors with medium lighting, the kind of lighting where a lower grade auto digitial camera will work fine without flash.
Does the lens you have help with that?
Usually to get a decent shot indoors I have to go full manual, max ISO (1600), max aperture (f/4.0 or 3.5 not sure), set an easier shutter speed (1/20 or so), and hope the underexposure can be fixed on my PC.
Otherwise I go into AV mode, set the max aperture and pray I don't move.
Maybe I should just buy a unipod or tripod. Also I hate to use flash cause the shots always look horrible.