Well, sort of related:
1. I heard someone say that if you eat a ton of lemons, it will cause your period to stop for a month (and she was planning to do this in order to not have her period while on her honeymoon)...(what a dummy!).
2. I heard someone else say that if you drink lots of orange juice, it will get your period to stop, mid-week even!
3. The same person said that if you want to go swimming while you're on your period, you should take a very cold shower first, then you'll be good to go for at least 3-4 hours in the pool....terrible.
But the WORST sex advice I ever got was from my mom, who said:
"Don't go around kissing boys, because the next thing you know you'll be pregnant!"
She left out how pregnancy actually occurs, so you can imagine that at age 10 I was terrified of any boys trying to kiss me, even on the cheek!! LOL!