Once a teacher asked one of her students to memorize the numbers from 1-10.
And that night when he was memorizing he saw his mother drinking 7up, so the next day the teacher asked the student to say the numbers that he memorized so he replied," 1-2-3-4-5-6-8-9-10".
The teacher was confused so she asked the student," Where is the 7" so he said," my mom drank it last night!"