How many bites do you need to eat an int?
Four.

I'm going name a table "the bass".
I can now drop the bass.

A friend asks me for help with one of her subjects in college (She is taking a degree on Communication sciences):
Her: "Hey! Can you help me with Java next semester? I am going to have a subject about that..."
Me: "Java in your degree? Strange... You sure it's Java?"
Her: "Yes, I'm sure! I've talked to some people of my degree and they said it is Java. Can you help me?"
Me: "Okay! Do you have any documentation so that I can check what you are going to learn about Java?"
*She sends a PDF*
I open the PDF and the first page says: "Introduction to JavaScript".

When your supervisor/teacher is looking at your code and you hope he/she doesn't detect the bug you found before showing the code.

You know you are screwed when your colleague in a Java project asks you how to create two different constructors on the same class.