Too many Prunus perhaps? Never mind, here is another one...
I do not think there will be a day when I say: "Enough is enough" and as a result I would stop collecting this genus. Perhaps it is because they are part of my life since the time I can hardly remember... An old bird cherry was the first tree I was able to climb. At was at my age of three or perhaps four? And it was only possible with a massive help of the girls who were taking care of me. It must have been a hard job to push my fat ass up the tree. Frankly, I do not remember that part too much but, I do remember the feelings when I stood on the lower branch with the whole world below me. Who would care that I was not able to reach any of the cherries - the girls did a good job there as well. And what about blackthorns? I used to watch the berries, as they were moving up and down in the large storage jar that my beloved grandfather used for making wine. Much more worth than most of the programs on TV...