For the record, Starbucks (the company) isn't thrilled about this. They released a statement to Consumerist:

"...this particular customization was excessive and something that we do not encourage...

Per our existing policy, beverages larger than Trenta size (31 oz.) cannot be made or served. This includes personal cups that exceed 31 oz (or a Trenta-sized cup)."

And... follow me on Twitter @karahontheradio