We have grandkid duties this week – since the school is closed for the summer. My wife developed a little program of activities that we are following. It has plenty of playtime on different beautiful playgrounds in the area. On one of these our grandson was very interested in experimenting with sound devices. They are available at many playgrounds now – bells, tubes, shambles – all arranged in colorful displays and child-proof. Here the kids can play with sounds and can use little rubber hammers to bang at the devices – which is in its own right very attractive. He was playing sound flowers – which have different sizes of metal petals that swing at different frequencies when activated by the hammer. It happens so that there were three of these flowers. Little kids can be territorial! So, our grandson operated two of these flowers – aligned with his reach and the fact that he has only two hands for holding the two hammers simultaneously. My wife played a children song on her phone, and he tried to accompany the music with additional sounds. A mom with her cute little daughter of maybe 12-15 months walked up and the girl started exploring the third sound flower. Of course, after a while she turned her attention to the next flower and marched towards it. Her mom and I noticed that and that our grandson’s initial reaction was to position himself a little bit in such a way to block the path of the girl and to play with newly found intensity on his two flowers. So, I set out to solicit him to consider sharing the instrument with the girl for a while and then returning to playing it when she was done playing the flower for a little bit – explaining to him that he as the older one should be sharing with the younger child. But at the very same time the mom picked up her daughter and whisked her away. She did not complain but unfortunately my teaching moment also dissipated at the same time.