There was a man dressed in a neon jacket (the ones people wear when they work in construction). The prof was confused as why he entered the lecture hall and called him out. The guy said to continue as he won't disturb the class. (Heck yeah, he wouldn't).

After a couple of minutes, he brought out a water gun shaped like a d**k, and asked my classmates for water. He then poured it into the gun. Later, he shouted "Yoo everyone's hand in the air" and was threatening to spray water on people. Holding the water gun, he was walking towards the exit when our prof asked, "What is that? Is that a d**do?".

After that, the guy and the prof started arguing with each other until the point where the prof said, "Is this because I'm black?" That's when the neon-jacket guy stopped arguing and ran away.

The prof then apologized to the class for his behaviour. He explained the only reason he said that statement was to get rid of the dude and continue with teaching. He believe him. He was a great professor.