Johnny finds the answers for 1 + 1

One day the teacher asks Johnny a question

Teacher: Johnny, what is 1 + 1?

Johnny: I don't know

Teacher: go home and find out and I will ask again tomorrow

So Johnny goes home and he asks away. He first finds his mother.

Johnny: mom, what is 1 + 1?

At the same time, Johnny lets out a fart

Mom: that fucking stinks

So Johnny goes to ask his dad who is reading the newspaper

Johnny: dad, what is 1 + 1?

Johnny's dad comes across an article about president Barack Obama and so

Dad: hmm... Barack Obama

Johnny decides to ask his brother this time who is playing video games, and on the last level

Johnny: brother, what is 1 + 1?

Johnny's brother finally clears the last level and he says

Brother: Yes! Awesome!

Johnny then goes to his sister and asks his sister who is on the phone with her boyfriend

Johnny: sister, what's 1 + 1?

Johnny's sister's boyfriend says to call johnny's sister back later and so

Sister: I'll be waiting for you honey

Johnny goes back to school tomorrow and his teacher asks him

Teacher: what is 1 + 1 Johnny?

The teacher lets out a small fart

Johnny: that fucking stinks

Teacher: who taught you that?

Johnny: Barack Obama

Teacher: I'm taking you to the principal's office

Johnny: Yes! Awesome!

Teacher: You wait here and behave, I'm calling the principal and I will tell him about this situation

Johnny: I'll be waiting for you honey!

I got this joke from a kid when I was in 4th grade... It's probably shit