Sample preparation Puns

Because they are making land slides.

I work as a lab tech in my university, and as I was preparing some bacterial streak plates for some students (mind you, we use an innoculating loop to transfer bacteria from a sample tube to plates), I said to some of the students: "what did one bacteria said to the other? Let's get looped, and go streaking."

I received an uniform look of dissapointment and a couple of facepalms from the students while I giggled at my joke. The teacher loved it though.