I hear you, for me it's people avoidance, today the sun is shining which means every part-time moorland walker (and particularly those walking attitudes with their badly-behaved dogs) will be out - let them have it - I really can't be arsed!
I'll go out running when it's raining, cold and wet and mostly enjoy the entire moorland to myself, just with the occasional other lunatic running around - which is always pleasant and congenial!