What Happens in the TARDIS Stays in the TARDIS

So I met my email friend for coffee.  Well it was suppose to be for coffee, then it was pouring rain so we had to switch to a closer coffee shop, then that coffee shop was closing, so we ducked into the nearest restaurant where I promptly broke a plate. Seriously, I ate before I left so that I wouldn't slop food on myself or break anything while I was out with this guy.  This is the kind of restaurant where the tables are already set.  If I had any sense I would have turned around and walked out the second I saw that. Then I ordered a coffee that they didn't have the ingredients for, so the barista (gorgeous young man) came over with caramel he made ON THE SPOT and asked me taste it so they could add it to my cappuccino, except it was on a stick and I didn't want them staring at me while I tested it... So it was kind of awkward.  Did I mention it was the opening night?  No? Well it was.  Also, I'm pretty sure it is a TARDIS.  It was way bigger on the inside and well look at the picture.  I just realized though, that if I had smashed the plate in a restaurant outside of the TARDIS we (the doctor and I, of course) could go back in time and he could catch the plate, and order a normal cappuccino for me. However a TARDIS cannot travel through time within itself.  So what happens in a TARDIS stays in the TARDIS.