Aside from the boilerplate checking of programs and proctoring exams, our TAs receive the occasional plum assignment.
Bong Olpoc needed four TAs to help him with a workshop he was conducting. Among the materials he needed for the workshop were five empty Pringles canisters. Now where do you find canisters without the contents? You don't. Bong had to buy five brand-new canisters of Pringles, give them to the four TAs and say, "Here, eat this."
Last Saturday, we had four students sitting on our sofas, studiously munching away. Of course, after the third canister, they were foisting Pringles on everyone who walked through the door. Even I went home with a short stack. The whole exercise put Pringles' by-line, "Once you pop, you can't stop" to the ultimate test.