Don't LOOK at anything in a physics lab.
Don't TASTE anything in a chemistry lab.
Don't SMELL anything in a biology lab.
Don't TOUCH anything in a medical lab.
and, most importantly:
Don't LISTEN to anything in a philosophy
The First Law of Philosophy: For every philosopher, there exists an equal and opposite philosopher.
The Second Law of Philosophy: They're both wrong.→ Joke
You enter the laboratory and see an experiment. How will you know which class is it?
If it's green and wiggles, it's biology.
If it stinks, it's chemistry.
If it doesn't work, it's physics.→ Joke
Final philosophy exam:
Is this a question?
If this is an answer!→ Joke
A philosophy professor walks in to give his class their final. Placing his chair on his desk the professor instructs the class, "Using every applicable thing you've learned in this course, prove to me that this chair DOES NOT EXIST."
So, pencils are writing and erasers are erasing, students are preparing to embark on novels proving that this chair doesn't exist, except for one student. He spends thirty seconds writing his answer, then turns his final in to the astonishment of his peers.
Time goes by, and the day comes when all the students get their final grades ... and to the amazment of the class, the student who wrote for thirty seconds gets the highest grade in the class.
His answer to the question: "What chair?"→ Joke
The teacher of the earth science class was lecturing on map reading.
After explaining about latitude, longitude, degrees and minutes the teacher asked, "Suppose I asked you to meet me for lunch at 23 degrees, 4 minutes north latitude and 45 degrees, 15 minutes east longitude?"
After a confused silence, a voice volunteered, "I guess you'd be eating alone."→ JokeMore jokes