This is Lappa!
I met Lappa (Russian for "big feet") during a short walk at a nearby park yesterday. His owner Alexander told me that Lappa is "a rambunctious, teen-aged Saint Bernard", and he was so right. A beautiful dog, he was bursting with energy, and had no trouble leaping such that he and I were eye to eye (I'm 6'2"!). Alexander was camera-shy but as you can see, Lappa was not.