This Tea Self-Destructs in 5 Minutes

I have a feeling I've posted a similar picture before, but couldn't find it in the archives, so forvive me should this look familiar...Yesterday I ordered tea which arrived with a digital timer, making it look a bit suspicious. "Oooh, comes with its own little time-bomb", I said to the waiter when he put it on the table.

Speaking of potentially repetitive posts: not sure if I'll have the time and material over the next few days to keep up the usual frequency, so bear with me.