It's called "ice" you dipwads.
Ya, but was the ice made using Government approved water?
Actually, the acid in the lemons and the sugar will inhibit bacterial growth. Both have been used as preservatives for eons. (think pickles and jams) Even if that weren't the case, you have a 4 hour window before anything starts growing anyway. So, rather than someone who actually knows about health issues, we have a grump who needed to kick a couple of little girls around.