(When Geometry Becomes Dirty, Part 1 is here.)
…
A colleague of mine had some time to kill after his kids finished a final exam last week. So he decided to play Pictionary on the electronic chalkboard in the room.
The kids wrote down topics on scraps of paper and scrambled them up. Then, they chose teams.
At one point, a kid went up to the board and drew the following…

At this point, the teacher was shocked. He told the kid to stop immediately and screamed, “WHAT ARE YOU DRAWING!?”
The kid, apparently clueless to what the teacher was talking about, held up the paper with the topic.
“I was drawing a cellphone.”