Great thread, so many lovely people around!
Mine would have to be, on a flight home trying to order food for ourselves and a hungry toddler, our card wasn't a accepted card for some reason, so a lovely couple paid for us, we protested but they insisted. Was really lovely.
Another was my named specialist whilst pregnant, not sure it was kindness or her been cautious but I have a blood disorder, some antibodies I should not have that can cause issues in pregnancy, only met her twice during pregnancy but she was so kind and lovely, really reassuring as she could tell how anxious I was I was.
I went into labour, full term and was loosing blood clots, the midwife I saw was insistant it was just my mucous plug (it wasn't, it was my second birth so I knew the difference) and wanted to send me home, I insisted she speak to my specialist which she reluctantly did, specialist couldn't get in to see me but insisted I was admitted and induced without even looking at me, when the midwife protested saying it was only my plug she said to do it anyway to 'put my mind at rest'
Was induced, DS was born, lost lots more clots and blood, my placenta was failing, I honestly don't think he would be here now if it wasn't for that specialist going out a limb for me and pulling rank just so I wasn't worried. Might not be a random act of kindness as such, but I was so thankful for her taking time out of her day to help me and my DD.