Sometimes, even "an eyeful" is improper. I've had three attractive daughters, the reprobates started getting their eyes full when my daughters turned about ten year sold. It's infuriating to a father - or a mother either for that matter.
More than once, I've shouted at some pervert to "get their eyes back in their heads" and loudly tell them, She's 12 years old pervert. very effective in a crowded store and it beats shooting them, which I would prefer at times.
Anyone here who has daughters knows exactly what I mean.