My then 5 year old DS was at preschool last year, and when I picked him up for the day, he proudly presented me his cut and pasting picture he had done. I had a quick look at it, and did a double take, had to look harder, He had cut out and pasted quite a few little pictures of half naked women onto it,,,,apparently one of the magazines that had been donated to the school had one of those ringtone and wallpaper ads on the back, and it had lots of bare chested girls pictured as available wallpapers. I showed his teachers, who went bright red, and decided to screen all magazines from now on lol.

As for the tampons, my eldest,(10), and my 6 year old son, walked into my room looking for me, and found my 4 year old going through my nickers drawer, and they decided to pull out my tampons and play with them all,,,,,,so in I walk, and find my eldest copying that add on tv (the one with the boyfriend playing with the cat with the tampons). He was dangling one from the string, chanting "mousy mousy" I almost died right there on the spot.
That same 10 year old child, has asked me if mummies are bedwetters, i answered no. He then went on to tell me that they must be, as the ad on tv says they need those pads with the special sides to "help keep them drier", so in his mind, they were like little nappies for mums who wet the bed ROFL I really must give him the birds and the bees speech, but DH is against it yet.
2 years ago, we rented a house next to a housing commission one, and the single mum there, had 2 little girls, and was heavily pg with another. One day while she had a nap (while her little girls were having theirs too), the eldest little girl who was 3 woke up a bit early, and decided to try to feed their little rabbit. She went to the cupboard, and decided that rabits ate nesquik strawberry milk (because it is the rabbit milk) so poured the whole tin into the hutch lol, unfortunately the rabbit died after eating it.