I’ve learned that if you ask and are polite you can usually get what you want or need.  Jan and I stopped at this bar and I really wanted the small beer glass used for my water.  So I asked if I could buy it.  Of course the cute man gave it to me.  He continued to hang out with us, brought us tapas and a couple of shots (similar to baileys and yummy).  At the end Jan had a couple of beers, I had a bottle of water and 2 shots of something, plus the other shots he just brought to us… two plates of tapas (ham, cheese, crackers, etc.)… total:  7 Euro.  We left him a nice tip and I will visit this place again.