That'll work for the regular ones maybe, but some of the really smart ones pretend to be creepy-ass statues and the only thing you can really do about that is run around, pissing yourself and screaming like a little girl, until they get bored and go away.
Oh right those kind. Can't say I've played it, yet, but I know the ones. Boobs with meathooks are a growing problem in today's society, and personally I think action is needed. Probably taking away the meathooks and keeping them on close observation.
I think this is good practice, but one of the glaring issues is the limited onionskinning--your girl shrinks and grows which is deceptive on the lighttable unless you have some kind of proportion markers set up.