Layin' in the summer grass, you told me not to touch your ass.

The story:

I always thought that the version I was hearing was a little odd, but that's what I heard so I went along with it. It wasn't until I was singing along to the song at a party that I was overheard by a friend. She thought that I was joking around, making fun of the lyrics. She realised I was serious and has never let me forget about my terrible hearing.