Can Guinea Pigs Learn Tricks?

Our humans have pretty much given up on getting us to stop rattling the bars of our cage. However, that doesn't mean guinea pigs can't be trained, as the cute piggies in this YouTube video demonstrate:

These piggies got a treat for doing tricks. Maybe we just need the proper motivation to not chew on the bars. How about a treat for every minute we don't chew on the bars? What do you say, humans?