Today I took my son to Cliffe Castle park which he loves. He was in a very chatty mood today but I was told that he had had a bad night last night. I was told off for not asking how he was between having him. I have him every two days and sometimes everyday so if he is ok when he's with me then I guess he's ok with his mum too. But the beauty of the situation was I could leave. That's what I did. 
After the park we went for a walk during which we passed dog walkers and cyclists. I don't understand why people feel it necessary to say Hello to me when I walk pass them in isolated areas. Nobody ever greets me as I walk over the road on a zebra crossing.I don't say hi in a lift. So why do they feel the desire when I am quietly walking on moorland or nature trails?. 
Is it because we both have had the same idea, to go for a walk at this particular spot. In that case why don't we all say hello in a dentist waiting room where you could use a bit of friendliness.
I just don't understand.