Today I am going to tell you what I am most afraid of.... here we go.
>Be me
>Be about a 6/10
>Just move into a new neighborhood and have no friends
>Be outside mowing the lawn when random dog runs up to me
>Look up and a 9/10 is running after it
>Help her get dog back, introduce ourselves
>Become very good friends
>Eventually begin dating
>Fast forward about two months
>New girl moves in
>eh about a 7/10, would boink
>Try to be polite and introduce myself to new girl
>New girl and I start to become friends too, even though she seems a little odd
>Tell her i have a girlfriend, can see she is (literally) insanely jealous
>Fast forward two more weeks
>Start to see less and less of my girlfriend and at the same time new girl starts to become even more of a psycho bitch
>Fast forward 4 days
>Get a random Facebook message from my girlfriend saying that 7/10 threatened to kill my girlfriend if she ever talked to me again
>wtf.jpeg
>Fast forward one more week
>Do not hear or see either girl since that message on facebook, start growing very worried
>Random knock on my door, Its the cops
>Shows me picture of two girls asking if I know them
>Say yes, getting more worried
>Cops tell me that 7/10 committed suicide and remains of my girlfriend showed up in her stomach during the autopsy
TL:DR why was the 6 afraid of the 7? Because 7 ate 9
It's a kids' joke. "Seven eight nine" sounds like "seven ate nine".