My research group is made up of approximately 5 theorists (including my advisor) and 8 experimentalists (including their advisor). At a recent group meeting, an experimental grad student presented the following data:
My advisor says: "What did the theorists do wrong??" After the group meeting, he tells the grad student, "you must have been standing too close to your sample. Your magnetic personality messed up your data!" As we are walking back to our offices, my advisor says "I'm thinking of adding a term to our Hamiltonian called H sub crap."